/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 10:59:02,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 10:59:02,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 10:59:02,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 10:59:02,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 10:59:02,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 10:59:02,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 10:59:02,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 10:59:02,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 10:59:02,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 10:59:02,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 10:59:02,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 10:59:02,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 10:59:02,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 10:59:02,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 10:59:02,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 10:59:02,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 10:59:02,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 10:59:02,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 10:59:02,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 10:59:02,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 10:59:02,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 10:59:02,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 10:59:02,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 10:59:02,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 10:59:02,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 10:59:02,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 10:59:02,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 10:59:02,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 10:59:02,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 10:59:02,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 10:59:02,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 10:59:02,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 10:59:02,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 10:59:02,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 10:59:02,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 10:59:02,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 10:59:02,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 10:59:02,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 10:59:02,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 10:59:02,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 10:59:02,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 10:59:02,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 10:59:02,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 10:59:02,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 10:59:02,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 10:59:02,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 10:59:02,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 10:59:02,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 10:59:02,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 10:59:02,843 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 10:59:02,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 10:59:02,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 10:59:02,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 10:59:02,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 10:59:02,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 10:59:02,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 10:59:02,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 10:59:02,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 10:59:02,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:59:02,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 10:59:02,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 10:59:02,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 10:59:02,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 10:59:03,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 10:59:03,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 10:59:03,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 10:59:03,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 10:59:03,033 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 10:59:03,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-18 10:59:03,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac06ebef/a59a3b8e6ce04fd19250f9a65e1f1c46/FLAGabbc8c7a8 [2022-01-18 10:59:03,421 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 10:59:03,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-18 10:59:03,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac06ebef/a59a3b8e6ce04fd19250f9a65e1f1c46/FLAGabbc8c7a8 [2022-01-18 10:59:03,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac06ebef/a59a3b8e6ce04fd19250f9a65e1f1c46 [2022-01-18 10:59:03,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 10:59:03,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 10:59:03,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 10:59:03,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 10:59:03,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 10:59:03,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9be97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03, skipping insertion in model container [2022-01-18 10:59:03,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 10:59:03,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 10:59:03,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-18 10:59:03,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:59:03,618 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 10:59:03,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-18 10:59:03,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:59:03,658 INFO L208 MainTranslator]: Completed translation [2022-01-18 10:59:03,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03 WrapperNode [2022-01-18 10:59:03,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 10:59:03,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 10:59:03,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 10:59:03,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 10:59:03,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,699 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-01-18 10:59:03,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 10:59:03,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 10:59:03,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 10:59:03,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 10:59:03,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 10:59:03,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 10:59:03,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 10:59:03,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 10:59:03,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (1/1) ... [2022-01-18 10:59:03,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:59:03,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:59:03,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 10:59:03,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 10:59:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 10:59:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 10:59:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 10:59:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 10:59:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 10:59:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 10:59:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 10:59:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 10:59:03,792 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 10:59:03,898 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 10:59:03,899 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 10:59:04,150 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 10:59:04,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 10:59:04,157 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 10:59:04,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:59:04 BoogieIcfgContainer [2022-01-18 10:59:04,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 10:59:04,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 10:59:04,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 10:59:04,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 10:59:04,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:59:03" (1/3) ... [2022-01-18 10:59:04,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215421f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:59:04, skipping insertion in model container [2022-01-18 10:59:04,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:59:03" (2/3) ... [2022-01-18 10:59:04,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215421f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:59:04, skipping insertion in model container [2022-01-18 10:59:04,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:59:04" (3/3) ... [2022-01-18 10:59:04,163 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-01-18 10:59:04,166 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 10:59:04,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 10:59:04,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 10:59:04,166 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:59:04,228 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 10:59:04,268 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:59:04,277 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:59:04,277 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 10:59:04,288 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 208 places, 222 transitions, 460 flow [2022-01-18 10:59:04,444 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-18 10:59:04,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:04,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:04,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1784504573, now seen corresponding path program 1 times [2022-01-18 10:59:04,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:04,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938888842] [2022-01-18 10:59:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:04,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:59:04,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:04,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938888842] [2022-01-18 10:59:04,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938888842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:04,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:04,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:59:04,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377474931] [2022-01-18 10:59:04,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:04,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:59:04,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:04,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:59:04,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:59:04,761 INFO L87 Difference]: Start difference. First operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:04,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:04,827 INFO L93 Difference]: Finished difference Result 5325 states and 15084 transitions. [2022-01-18 10:59:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:59:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-01-18 10:59:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:04,866 INFO L225 Difference]: With dead ends: 5325 [2022-01-18 10:59:04,866 INFO L226 Difference]: Without dead ends: 5035 [2022-01-18 10:59:04,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:59:04,870 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:04,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2022-01-18 10:59:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5035. [2022-01-18 10:59:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 2.8363130711164084) internal successors, (14278), 5034 states have internal predecessors, (14278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 14278 transitions. [2022-01-18 10:59:05,098 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 14278 transitions. Word has length 127 [2022-01-18 10:59:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:05,098 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 14278 transitions. [2022-01-18 10:59:05,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 14278 transitions. [2022-01-18 10:59:05,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-18 10:59:05,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:05,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:05,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 10:59:05,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:05,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:05,120 INFO L85 PathProgramCache]: Analyzing trace with hash 987407205, now seen corresponding path program 1 times [2022-01-18 10:59:05,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:05,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243344150] [2022-01-18 10:59:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:05,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:59:05,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:05,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243344150] [2022-01-18 10:59:05,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243344150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:05,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:05,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 10:59:05,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423076571] [2022-01-18 10:59:05,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:05,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 10:59:05,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:05,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 10:59:05,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 10:59:05,282 INFO L87 Difference]: Start difference. First operand 5035 states and 14278 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:05,381 INFO L93 Difference]: Finished difference Result 5047 states and 14290 transitions. [2022-01-18 10:59:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 10:59:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-01-18 10:59:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:05,414 INFO L225 Difference]: With dead ends: 5047 [2022-01-18 10:59:05,414 INFO L226 Difference]: Without dead ends: 5047 [2022-01-18 10:59:05,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:59:05,415 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 342 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:05,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 384 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:05,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2022-01-18 10:59:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5037. [2022-01-18 10:59:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 5036 states have (on average 2.835583796664019) internal successors, (14280), 5036 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 14280 transitions. [2022-01-18 10:59:05,565 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 14280 transitions. Word has length 127 [2022-01-18 10:59:05,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:05,568 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 14280 transitions. [2022-01-18 10:59:05,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 14280 transitions. [2022-01-18 10:59:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 10:59:05,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:05,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:05,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 10:59:05,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:05,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:05,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1848078548, now seen corresponding path program 1 times [2022-01-18 10:59:05,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:05,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655228265] [2022-01-18 10:59:05,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:05,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 10:59:05,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:05,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655228265] [2022-01-18 10:59:05,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655228265] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:59:05,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232888950] [2022-01-18 10:59:05,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:05,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:05,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:59:05,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:59:05,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 10:59:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:05,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 10:59:05,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:59:06,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 10:59:06,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:59:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 10:59:06,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232888950] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:59:06,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:59:06,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-18 10:59:06,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439337133] [2022-01-18 10:59:06,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:59:06,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 10:59:06,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 10:59:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 10:59:06,251 INFO L87 Difference]: Start difference. First operand 5037 states and 14280 transitions. Second operand has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:06,410 INFO L93 Difference]: Finished difference Result 5065 states and 14308 transitions. [2022-01-18 10:59:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 10:59:06,411 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-01-18 10:59:06,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:06,430 INFO L225 Difference]: With dead ends: 5065 [2022-01-18 10:59:06,430 INFO L226 Difference]: Without dead ends: 5065 [2022-01-18 10:59:06,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-01-18 10:59:06,431 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 610 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:06,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 914 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:59:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2022-01-18 10:59:06,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5065. [2022-01-18 10:59:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5065 states, 5064 states have (on average 2.825434439178515) internal successors, (14308), 5064 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 14308 transitions. [2022-01-18 10:59:06,523 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 14308 transitions. Word has length 141 [2022-01-18 10:59:06,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:06,523 INFO L470 AbstractCegarLoop]: Abstraction has 5065 states and 14308 transitions. [2022-01-18 10:59:06,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 14308 transitions. [2022-01-18 10:59:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-18 10:59:06,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:06,533 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:06,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 10:59:06,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:06,748 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:06,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:06,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1234184308, now seen corresponding path program 2 times [2022-01-18 10:59:06,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:06,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365491923] [2022-01-18 10:59:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:06,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 10:59:06,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:06,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365491923] [2022-01-18 10:59:06,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365491923] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:59:06,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792939010] [2022-01-18 10:59:06,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 10:59:06,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:06,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:59:06,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:59:06,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 10:59:06,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 10:59:06,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 10:59:06,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:59:06,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:59:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-18 10:59:07,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 10:59:07,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792939010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:07,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 10:59:07,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 10:59:07,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841409658] [2022-01-18 10:59:07,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:07,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:07,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:07,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-18 10:59:07,243 INFO L87 Difference]: Start difference. First operand 5065 states and 14308 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:07,409 INFO L93 Difference]: Finished difference Result 8738 states and 24927 transitions. [2022-01-18 10:59:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 10:59:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-01-18 10:59:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:07,435 INFO L225 Difference]: With dead ends: 8738 [2022-01-18 10:59:07,435 INFO L226 Difference]: Without dead ends: 8738 [2022-01-18 10:59:07,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:07,436 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 340 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:07,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1126 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:59:07,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-01-18 10:59:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 5953. [2022-01-18 10:59:07,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5953 states, 5952 states have (on average 2.827284946236559) internal successors, (16828), 5952 states have internal predecessors, (16828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:07,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 16828 transitions. [2022-01-18 10:59:07,561 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 16828 transitions. Word has length 169 [2022-01-18 10:59:07,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:07,562 INFO L470 AbstractCegarLoop]: Abstraction has 5953 states and 16828 transitions. [2022-01-18 10:59:07,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:07,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 16828 transitions. [2022-01-18 10:59:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-18 10:59:07,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:07,573 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:07,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 10:59:07,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-18 10:59:07,788 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:07,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1857872626, now seen corresponding path program 3 times [2022-01-18 10:59:07,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:07,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224994990] [2022-01-18 10:59:07,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:07,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 10:59:07,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:07,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224994990] [2022-01-18 10:59:07,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224994990] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:59:07,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598442299] [2022-01-18 10:59:07,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 10:59:07,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:07,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:59:07,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:59:07,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 10:59:07,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-18 10:59:07,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 10:59:07,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:59:07,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:59:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-18 10:59:08,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 10:59:08,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598442299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:08,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 10:59:08,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 10:59:08,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879661846] [2022-01-18 10:59:08,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:08,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:08,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:08,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-18 10:59:08,248 INFO L87 Difference]: Start difference. First operand 5953 states and 16828 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:08,389 INFO L93 Difference]: Finished difference Result 9654 states and 27532 transitions. [2022-01-18 10:59:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:08,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-01-18 10:59:08,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:08,411 INFO L225 Difference]: With dead ends: 9654 [2022-01-18 10:59:08,411 INFO L226 Difference]: Without dead ends: 9654 [2022-01-18 10:59:08,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-01-18 10:59:08,412 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 323 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:08,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1200 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:59:08,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2022-01-18 10:59:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 5985. [2022-01-18 10:59:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5984 states have (on average 2.8275401069518717) internal successors, (16920), 5984 states have internal predecessors, (16920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 16920 transitions. [2022-01-18 10:59:08,580 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 16920 transitions. Word has length 169 [2022-01-18 10:59:08,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:08,581 INFO L470 AbstractCegarLoop]: Abstraction has 5985 states and 16920 transitions. [2022-01-18 10:59:08,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:08,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 16920 transitions. [2022-01-18 10:59:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-18 10:59:08,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:08,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:08,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 10:59:08,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:08,807 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash 453420382, now seen corresponding path program 4 times [2022-01-18 10:59:08,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589883542] [2022-01-18 10:59:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 10:59:08,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589883542] [2022-01-18 10:59:08,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589883542] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:59:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697485785] [2022-01-18 10:59:08,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 10:59:08,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:08,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:59:08,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:59:08,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 10:59:08,974 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 10:59:08,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 10:59:08,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 10:59:08,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:59:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 10:59:09,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:59:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 10:59:09,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697485785] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:59:09,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:59:09,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-18 10:59:09,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687486644] [2022-01-18 10:59:09,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:59:09,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 10:59:09,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 10:59:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 10:59:09,454 INFO L87 Difference]: Start difference. First operand 5985 states and 16920 transitions. Second operand has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:09,679 INFO L93 Difference]: Finished difference Result 6013 states and 16948 transitions. [2022-01-18 10:59:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 10:59:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-01-18 10:59:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:09,692 INFO L225 Difference]: With dead ends: 6013 [2022-01-18 10:59:09,692 INFO L226 Difference]: Without dead ends: 6013 [2022-01-18 10:59:09,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:09,693 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 937 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:09,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 1225 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:59:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-01-18 10:59:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 6013. [2022-01-18 10:59:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8190286094477712) internal successors, (16948), 6012 states have internal predecessors, (16948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16948 transitions. [2022-01-18 10:59:09,796 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16948 transitions. Word has length 169 [2022-01-18 10:59:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:09,796 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16948 transitions. [2022-01-18 10:59:09,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16948 transitions. [2022-01-18 10:59:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:09,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:09,805 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:09,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 10:59:10,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:59:10,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:10,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:10,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1083808322, now seen corresponding path program 5 times [2022-01-18 10:59:10,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:10,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026541739] [2022-01-18 10:59:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:10,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:10,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:10,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026541739] [2022-01-18 10:59:10,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026541739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:10,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:10,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:10,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895127548] [2022-01-18 10:59:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:10,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:10,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:10,113 INFO L87 Difference]: Start difference. First operand 6013 states and 16948 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:10,212 INFO L93 Difference]: Finished difference Result 8978 states and 25546 transitions. [2022-01-18 10:59:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:10,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:10,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:10,230 INFO L225 Difference]: With dead ends: 8978 [2022-01-18 10:59:10,230 INFO L226 Difference]: Without dead ends: 8966 [2022-01-18 10:59:10,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 10:59:10,231 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 287 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:10,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 935 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2022-01-18 10:59:10,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 6013. [2022-01-18 10:59:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8183632734530937) internal successors, (16944), 6012 states have internal predecessors, (16944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16944 transitions. [2022-01-18 10:59:10,333 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16944 transitions. Word has length 197 [2022-01-18 10:59:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:10,334 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16944 transitions. [2022-01-18 10:59:10,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16944 transitions. [2022-01-18 10:59:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:10,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:10,342 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:10,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 10:59:10,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1457173220, now seen corresponding path program 6 times [2022-01-18 10:59:10,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:10,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885827525] [2022-01-18 10:59:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:10,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:10,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:10,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885827525] [2022-01-18 10:59:10,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885827525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:10,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:10,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:10,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815220362] [2022-01-18 10:59:10,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:10,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:10,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:10,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:10,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:10,427 INFO L87 Difference]: Start difference. First operand 6013 states and 16944 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:10,526 INFO L93 Difference]: Finished difference Result 10058 states and 28610 transitions. [2022-01-18 10:59:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:10,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:10,546 INFO L225 Difference]: With dead ends: 10058 [2022-01-18 10:59:10,546 INFO L226 Difference]: Without dead ends: 10058 [2022-01-18 10:59:10,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:59:10,547 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 218 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:10,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1110 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-01-18 10:59:10,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 6109. [2022-01-18 10:59:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.819253438113949) internal successors, (17220), 6108 states have internal predecessors, (17220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 17220 transitions. [2022-01-18 10:59:10,674 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 17220 transitions. Word has length 197 [2022-01-18 10:59:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:10,675 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 17220 transitions. [2022-01-18 10:59:10,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 17220 transitions. [2022-01-18 10:59:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:10,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:10,683 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:10,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 10:59:10,684 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:10,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:10,684 INFO L85 PathProgramCache]: Analyzing trace with hash 52720976, now seen corresponding path program 7 times [2022-01-18 10:59:10,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:10,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370501218] [2022-01-18 10:59:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:10,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:10,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370501218] [2022-01-18 10:59:10,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370501218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:10,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:10,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:10,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255633811] [2022-01-18 10:59:10,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:10,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:10,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:10,755 INFO L87 Difference]: Start difference. First operand 6109 states and 17220 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:10,846 INFO L93 Difference]: Finished difference Result 10142 states and 28841 transitions. [2022-01-18 10:59:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:10,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:10,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:10,865 INFO L225 Difference]: With dead ends: 10142 [2022-01-18 10:59:10,865 INFO L226 Difference]: Without dead ends: 10130 [2022-01-18 10:59:10,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:10,866 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 285 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:10,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1062 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10130 states. [2022-01-18 10:59:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10130 to 6077. [2022-01-18 10:59:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8189598420013167) internal successors, (17128), 6076 states have internal predecessors, (17128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17128 transitions. [2022-01-18 10:59:10,976 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17128 transitions. Word has length 197 [2022-01-18 10:59:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:10,976 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17128 transitions. [2022-01-18 10:59:10,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17128 transitions. [2022-01-18 10:59:10,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:10,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:11,002 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:11,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 10:59:11,003 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1650902898, now seen corresponding path program 8 times [2022-01-18 10:59:11,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:11,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314310880] [2022-01-18 10:59:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:11,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:11,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:11,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314310880] [2022-01-18 10:59:11,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314310880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:11,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:11,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:11,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981647342] [2022-01-18 10:59:11,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:11,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:11,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:11,080 INFO L87 Difference]: Start difference. First operand 6077 states and 17128 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:11,156 INFO L93 Difference]: Finished difference Result 9138 states and 25986 transitions. [2022-01-18 10:59:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:11,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:11,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:11,171 INFO L225 Difference]: With dead ends: 9138 [2022-01-18 10:59:11,171 INFO L226 Difference]: Without dead ends: 9102 [2022-01-18 10:59:11,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:11,172 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 178 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:11,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-01-18 10:59:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6077. [2022-01-18 10:59:11,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8176431863067806) internal successors, (17120), 6076 states have internal predecessors, (17120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17120 transitions. [2022-01-18 10:59:11,276 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17120 transitions. Word has length 197 [2022-01-18 10:59:11,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:11,276 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17120 transitions. [2022-01-18 10:59:11,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17120 transitions. [2022-01-18 10:59:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:11,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:11,285 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:11,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 10:59:11,285 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash -894162494, now seen corresponding path program 9 times [2022-01-18 10:59:11,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407377451] [2022-01-18 10:59:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:11,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:11,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:11,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407377451] [2022-01-18 10:59:11,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407377451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:11,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:11,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:11,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504221598] [2022-01-18 10:59:11,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:11,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:11,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:11,346 INFO L87 Difference]: Start difference. First operand 6077 states and 17120 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:11,441 INFO L93 Difference]: Finished difference Result 9645 states and 27438 transitions. [2022-01-18 10:59:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:11,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:11,456 INFO L225 Difference]: With dead ends: 9645 [2022-01-18 10:59:11,456 INFO L226 Difference]: Without dead ends: 9645 [2022-01-18 10:59:11,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:11,457 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 195 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:11,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 987 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-01-18 10:59:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5328. [2022-01-18 10:59:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 2.819598272949127) internal successors, (15020), 5327 states have internal predecessors, (15020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 15020 transitions. [2022-01-18 10:59:11,581 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 15020 transitions. Word has length 197 [2022-01-18 10:59:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:11,581 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 15020 transitions. [2022-01-18 10:59:11,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 15020 transitions. [2022-01-18 10:59:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:11,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:11,589 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:11,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 10:59:11,589 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1996352558, now seen corresponding path program 10 times [2022-01-18 10:59:11,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:11,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865958797] [2022-01-18 10:59:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:11,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:11,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:11,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865958797] [2022-01-18 10:59:11,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865958797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:11,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:11,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:11,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020790935] [2022-01-18 10:59:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:11,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:11,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:11,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:11,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:11,656 INFO L87 Difference]: Start difference. First operand 5328 states and 15020 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:11,756 INFO L93 Difference]: Finished difference Result 9729 states and 27669 transitions. [2022-01-18 10:59:11,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:11,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:11,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:11,772 INFO L225 Difference]: With dead ends: 9729 [2022-01-18 10:59:11,772 INFO L226 Difference]: Without dead ends: 9717 [2022-01-18 10:59:11,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:11,773 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 313 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:11,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1026 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-01-18 10:59:11,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5296. [2022-01-18 10:59:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 2.8192634560906518) internal successors, (14928), 5295 states have internal predecessors, (14928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 14928 transitions. [2022-01-18 10:59:11,867 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 14928 transitions. Word has length 197 [2022-01-18 10:59:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:11,867 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 14928 transitions. [2022-01-18 10:59:11,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 14928 transitions. [2022-01-18 10:59:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:11,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:11,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:11,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 10:59:11,873 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:11,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash -700432816, now seen corresponding path program 11 times [2022-01-18 10:59:11,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:11,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414568050] [2022-01-18 10:59:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:11,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:11,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:11,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414568050] [2022-01-18 10:59:11,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414568050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:11,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:11,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:11,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150081039] [2022-01-18 10:59:11,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:11,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:11,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:11,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:11,939 INFO L87 Difference]: Start difference. First operand 5296 states and 14928 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:12,027 INFO L93 Difference]: Finished difference Result 9645 states and 27422 transitions. [2022-01-18 10:59:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:12,042 INFO L225 Difference]: With dead ends: 9645 [2022-01-18 10:59:12,042 INFO L226 Difference]: Without dead ends: 9609 [2022-01-18 10:59:12,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 10:59:12,043 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 172 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:12,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1208 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:12,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-01-18 10:59:12,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5232. [2022-01-18 10:59:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5232 states, 5231 states have (on average 2.8185815331676545) internal successors, (14744), 5231 states have internal predecessors, (14744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 14744 transitions. [2022-01-18 10:59:12,138 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 14744 transitions. Word has length 197 [2022-01-18 10:59:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:12,138 INFO L470 AbstractCegarLoop]: Abstraction has 5232 states and 14744 transitions. [2022-01-18 10:59:12,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 14744 transitions. [2022-01-18 10:59:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:12,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:12,144 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:12,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 10:59:12,144 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1635372850, now seen corresponding path program 12 times [2022-01-18 10:59:12,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:12,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107823854] [2022-01-18 10:59:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:12,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:12,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:12,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107823854] [2022-01-18 10:59:12,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107823854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:12,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:12,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:12,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239563175] [2022-01-18 10:59:12,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:12,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:12,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:12,223 INFO L87 Difference]: Start difference. First operand 5232 states and 14744 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:12,299 INFO L93 Difference]: Finished difference Result 10585 states and 29897 transitions. [2022-01-18 10:59:12,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:12,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:12,316 INFO L225 Difference]: With dead ends: 10585 [2022-01-18 10:59:12,316 INFO L226 Difference]: Without dead ends: 10585 [2022-01-18 10:59:12,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:59:12,317 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 392 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:12,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 839 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-01-18 10:59:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 6246. [2022-01-18 10:59:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6246 states, 6245 states have (on average 2.8294635708566855) internal successors, (17670), 6245 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17670 transitions. [2022-01-18 10:59:12,431 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17670 transitions. Word has length 197 [2022-01-18 10:59:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:12,432 INFO L470 AbstractCegarLoop]: Abstraction has 6246 states and 17670 transitions. [2022-01-18 10:59:12,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17670 transitions. [2022-01-18 10:59:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:12,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:12,439 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:12,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 10:59:12,439 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash -550869130, now seen corresponding path program 13 times [2022-01-18 10:59:12,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:12,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913886000] [2022-01-18 10:59:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:12,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:12,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:12,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913886000] [2022-01-18 10:59:12,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913886000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:12,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:12,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:12,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616526883] [2022-01-18 10:59:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:12,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:12,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:12,530 INFO L87 Difference]: Start difference. First operand 6246 states and 17670 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:12,610 INFO L93 Difference]: Finished difference Result 11311 states and 32155 transitions. [2022-01-18 10:59:12,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:12,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:12,628 INFO L225 Difference]: With dead ends: 11311 [2022-01-18 10:59:12,628 INFO L226 Difference]: Without dead ends: 11311 [2022-01-18 10:59:12,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:59:12,631 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 358 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:12,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 792 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-01-18 10:59:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6190. [2022-01-18 10:59:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-01-18 10:59:12,730 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-01-18 10:59:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:12,730 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-01-18 10:59:12,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-01-18 10:59:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:12,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:12,737 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:12,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 10:59:12,737 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:12,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2031567104, now seen corresponding path program 14 times [2022-01-18 10:59:12,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:12,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374744673] [2022-01-18 10:59:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:12,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:12,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:12,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374744673] [2022-01-18 10:59:12,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374744673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:12,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:12,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:12,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051964490] [2022-01-18 10:59:12,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:12,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:12,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:12,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:12,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:12,787 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:12,858 INFO L93 Difference]: Finished difference Result 9994 states and 28468 transitions. [2022-01-18 10:59:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:12,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:12,874 INFO L225 Difference]: With dead ends: 9994 [2022-01-18 10:59:12,875 INFO L226 Difference]: Without dead ends: 9994 [2022-01-18 10:59:12,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:59:12,875 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 267 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:12,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 824 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:12,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2022-01-18 10:59:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 6190. [2022-01-18 10:59:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-01-18 10:59:12,973 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-01-18 10:59:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:12,973 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-01-18 10:59:12,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-01-18 10:59:12,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-18 10:59:12,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:12,980 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:12,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 10:59:12,980 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:12,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash -697665538, now seen corresponding path program 15 times [2022-01-18 10:59:12,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:12,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982132836] [2022-01-18 10:59:12,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:12,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:13,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:13,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982132836] [2022-01-18 10:59:13,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982132836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:13,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:13,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:13,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87356813] [2022-01-18 10:59:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:13,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:13,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:13,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:13,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:13,039 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:13,121 INFO L93 Difference]: Finished difference Result 10757 states and 30680 transitions. [2022-01-18 10:59:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:13,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-18 10:59:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:13,139 INFO L225 Difference]: With dead ends: 10757 [2022-01-18 10:59:13,139 INFO L226 Difference]: Without dead ends: 10757 [2022-01-18 10:59:13,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:13,140 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 349 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:13,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 791 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-01-18 10:59:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5378. [2022-01-18 10:59:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.8244374186349264) internal successors, (15187), 5377 states have internal predecessors, (15187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15187 transitions. [2022-01-18 10:59:13,228 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15187 transitions. Word has length 197 [2022-01-18 10:59:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:13,228 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15187 transitions. [2022-01-18 10:59:13,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15187 transitions. [2022-01-18 10:59:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:13,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:13,234 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:13,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 10:59:13,234 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1998923460, now seen corresponding path program 1 times [2022-01-18 10:59:13,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:13,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055199122] [2022-01-18 10:59:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:13,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:13,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:13,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055199122] [2022-01-18 10:59:13,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055199122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:13,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:13,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:13,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295851347] [2022-01-18 10:59:13,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:13,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:13,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:13,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:13,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:13,282 INFO L87 Difference]: Start difference. First operand 5378 states and 15187 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:13,355 INFO L93 Difference]: Finished difference Result 9593 states and 26922 transitions. [2022-01-18 10:59:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:59:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:13,395 INFO L225 Difference]: With dead ends: 9593 [2022-01-18 10:59:13,395 INFO L226 Difference]: Without dead ends: 9470 [2022-01-18 10:59:13,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 10:59:13,397 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 239 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:13,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1137 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-01-18 10:59:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 5378. [2022-01-18 10:59:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.820345917798029) internal successors, (15165), 5377 states have internal predecessors, (15165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15165 transitions. [2022-01-18 10:59:13,482 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15165 transitions. Word has length 210 [2022-01-18 10:59:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:13,482 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15165 transitions. [2022-01-18 10:59:13,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15165 transitions. [2022-01-18 10:59:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:13,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:13,489 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:13,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 10:59:13,490 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:13,490 INFO L85 PathProgramCache]: Analyzing trace with hash 856042914, now seen corresponding path program 2 times [2022-01-18 10:59:13,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:13,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199811093] [2022-01-18 10:59:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:13,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:13,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:13,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199811093] [2022-01-18 10:59:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199811093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:13,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:13,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:13,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666276163] [2022-01-18 10:59:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:13,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:13,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:13,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:13,548 INFO L87 Difference]: Start difference. First operand 5378 states and 15165 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:13,644 INFO L93 Difference]: Finished difference Result 11347 states and 31759 transitions. [2022-01-18 10:59:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:13,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:13,662 INFO L225 Difference]: With dead ends: 11347 [2022-01-18 10:59:13,662 INFO L226 Difference]: Without dead ends: 11302 [2022-01-18 10:59:13,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 10:59:13,663 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 308 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:13,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1195 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-01-18 10:59:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5442. [2022-01-18 10:59:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.8195184708693253) internal successors, (15341), 5441 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 15341 transitions. [2022-01-18 10:59:13,783 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 15341 transitions. Word has length 210 [2022-01-18 10:59:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:13,783 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 15341 transitions. [2022-01-18 10:59:13,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 15341 transitions. [2022-01-18 10:59:13,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:13,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:13,790 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:13,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 10:59:13,790 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:13,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1193971804, now seen corresponding path program 3 times [2022-01-18 10:59:13,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:13,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852956052] [2022-01-18 10:59:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:13,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:13,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852956052] [2022-01-18 10:59:13,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852956052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:13,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:13,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475377603] [2022-01-18 10:59:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:13,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:13,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:13,860 INFO L87 Difference]: Start difference. First operand 5442 states and 15341 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:13,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:13,971 INFO L93 Difference]: Finished difference Result 11071 states and 31168 transitions. [2022-01-18 10:59:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:13,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:13,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:13,987 INFO L225 Difference]: With dead ends: 11071 [2022-01-18 10:59:13,987 INFO L226 Difference]: Without dead ends: 11056 [2022-01-18 10:59:13,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:13,988 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 373 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:13,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1009 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:59:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-01-18 10:59:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5474. [2022-01-18 10:59:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8191120043851634) internal successors, (15429), 5473 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15429 transitions. [2022-01-18 10:59:14,080 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15429 transitions. Word has length 210 [2022-01-18 10:59:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:14,080 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15429 transitions. [2022-01-18 10:59:14,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15429 transitions. [2022-01-18 10:59:14,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:14,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:14,087 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:14,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 10:59:14,087 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash -273025212, now seen corresponding path program 1 times [2022-01-18 10:59:14,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:14,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204065997] [2022-01-18 10:59:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:14,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:14,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:14,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204065997] [2022-01-18 10:59:14,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204065997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:14,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:14,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:14,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206405897] [2022-01-18 10:59:14,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:14,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:14,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:14,152 INFO L87 Difference]: Start difference. First operand 5474 states and 15429 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:14,212 INFO L93 Difference]: Finished difference Result 8999 states and 25587 transitions. [2022-01-18 10:59:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:14,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:14,225 INFO L225 Difference]: With dead ends: 8999 [2022-01-18 10:59:14,226 INFO L226 Difference]: Without dead ends: 8915 [2022-01-18 10:59:14,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:14,226 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:14,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 850 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-01-18 10:59:14,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 5474. [2022-01-18 10:59:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8161885620317926) internal successors, (15413), 5473 states have internal predecessors, (15413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15413 transitions. [2022-01-18 10:59:14,308 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15413 transitions. Word has length 210 [2022-01-18 10:59:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:14,308 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15413 transitions. [2022-01-18 10:59:14,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15413 transitions. [2022-01-18 10:59:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:14,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:14,314 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:14,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 10:59:14,315 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:14,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1505777182, now seen corresponding path program 4 times [2022-01-18 10:59:14,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:14,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831697764] [2022-01-18 10:59:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:14,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:14,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:14,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831697764] [2022-01-18 10:59:14,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831697764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:14,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:14,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:14,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013850755] [2022-01-18 10:59:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:14,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:14,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:14,369 INFO L87 Difference]: Start difference. First operand 5474 states and 15413 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:14,456 INFO L93 Difference]: Finished difference Result 10365 states and 29272 transitions. [2022-01-18 10:59:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:14,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:14,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:14,471 INFO L225 Difference]: With dead ends: 10365 [2022-01-18 10:59:14,471 INFO L226 Difference]: Without dead ends: 10320 [2022-01-18 10:59:14,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:14,472 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 230 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:14,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1224 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-01-18 10:59:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 5474. [2022-01-18 10:59:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8147268408551067) internal successors, (15405), 5473 states have internal predecessors, (15405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15405 transitions. [2022-01-18 10:59:14,599 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15405 transitions. Word has length 210 [2022-01-18 10:59:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:14,599 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15405 transitions. [2022-01-18 10:59:14,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15405 transitions. [2022-01-18 10:59:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:14,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:14,605 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:14,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 10:59:14,606 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:14,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:14,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1167848292, now seen corresponding path program 5 times [2022-01-18 10:59:14,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:14,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775922421] [2022-01-18 10:59:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:14,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:14,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:14,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775922421] [2022-01-18 10:59:14,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775922421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:14,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:14,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:14,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003715211] [2022-01-18 10:59:14,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:14,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:14,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:14,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:14,695 INFO L87 Difference]: Start difference. First operand 5474 states and 15405 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:14,797 INFO L93 Difference]: Finished difference Result 11362 states and 32124 transitions. [2022-01-18 10:59:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:14,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:14,816 INFO L225 Difference]: With dead ends: 11362 [2022-01-18 10:59:14,816 INFO L226 Difference]: Without dead ends: 11347 [2022-01-18 10:59:14,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:59:14,817 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 336 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:14,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1047 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:14,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-01-18 10:59:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5410. [2022-01-18 10:59:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.815492697356258) internal successors, (15229), 5409 states have internal predecessors, (15229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 15229 transitions. [2022-01-18 10:59:14,923 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 15229 transitions. Word has length 210 [2022-01-18 10:59:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:14,923 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 15229 transitions. [2022-01-18 10:59:14,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15229 transitions. [2022-01-18 10:59:14,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-18 10:59:14,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:14,930 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:14,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 10:59:14,930 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash 473292210, now seen corresponding path program 6 times [2022-01-18 10:59:14,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:14,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420182031] [2022-01-18 10:59:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:14,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:14,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:15,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420182031] [2022-01-18 10:59:15,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420182031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:15,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:15,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:59:15,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122710891] [2022-01-18 10:59:15,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:15,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:59:15,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:15,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:59:15,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:59:15,001 INFO L87 Difference]: Start difference. First operand 5410 states and 15229 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:15,089 INFO L93 Difference]: Finished difference Result 9843 states and 28001 transitions. [2022-01-18 10:59:15,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:59:15,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-18 10:59:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:15,105 INFO L225 Difference]: With dead ends: 9843 [2022-01-18 10:59:15,105 INFO L226 Difference]: Without dead ends: 9828 [2022-01-18 10:59:15,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 10:59:15,106 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 301 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:15,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1105 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:59:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-01-18 10:59:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 5378. [2022-01-18 10:59:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.815138553096522) internal successors, (15137), 5377 states have internal predecessors, (15137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15137 transitions. [2022-01-18 10:59:15,207 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15137 transitions. Word has length 210 [2022-01-18 10:59:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:15,207 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15137 transitions. [2022-01-18 10:59:15,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15137 transitions. [2022-01-18 10:59:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:15,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:15,213 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:15,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 10:59:15,214 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:15,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash 245695604, now seen corresponding path program 1 times [2022-01-18 10:59:15,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:15,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74311526] [2022-01-18 10:59:15,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:15,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:15,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:15,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74311526] [2022-01-18 10:59:15,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74311526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:15,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:15,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:15,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679737970] [2022-01-18 10:59:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:15,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:15,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:15,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:15,623 INFO L87 Difference]: Start difference. First operand 5378 states and 15137 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:16,951 INFO L93 Difference]: Finished difference Result 20352 states and 57640 transitions. [2022-01-18 10:59:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 10:59:16,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:16,984 INFO L225 Difference]: With dead ends: 20352 [2022-01-18 10:59:16,984 INFO L226 Difference]: Without dead ends: 20352 [2022-01-18 10:59:16,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=537, Invalid=1913, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 10:59:16,985 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 2304 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:16,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2304 Valid, 4523 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 10:59:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2022-01-18 10:59:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 6848. [2022-01-18 10:59:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 6847 states have (on average 2.80327150576895) internal successors, (19194), 6847 states have internal predecessors, (19194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19194 transitions. [2022-01-18 10:59:17,165 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19194 transitions. Word has length 223 [2022-01-18 10:59:17,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:17,165 INFO L470 AbstractCegarLoop]: Abstraction has 6848 states and 19194 transitions. [2022-01-18 10:59:17,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19194 transitions. [2022-01-18 10:59:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:17,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:17,174 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:17,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 10:59:17,174 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash -177626872, now seen corresponding path program 2 times [2022-01-18 10:59:17,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:17,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558692594] [2022-01-18 10:59:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:17,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:17,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:17,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558692594] [2022-01-18 10:59:17,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558692594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:17,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:17,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:17,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822796732] [2022-01-18 10:59:17,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:17,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:17,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:17,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:17,537 INFO L87 Difference]: Start difference. First operand 6848 states and 19194 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:18,697 INFO L93 Difference]: Finished difference Result 19662 states and 55858 transitions. [2022-01-18 10:59:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 10:59:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:18,731 INFO L225 Difference]: With dead ends: 19662 [2022-01-18 10:59:18,731 INFO L226 Difference]: Without dead ends: 19662 [2022-01-18 10:59:18,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=471, Invalid=1785, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 10:59:18,732 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1939 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:18,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1939 Valid, 4011 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19662 states. [2022-01-18 10:59:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19662 to 6884. [2022-01-18 10:59:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 6883 states have (on average 2.808223158506465) internal successors, (19329), 6883 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 19329 transitions. [2022-01-18 10:59:18,884 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 19329 transitions. Word has length 223 [2022-01-18 10:59:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:18,884 INFO L470 AbstractCegarLoop]: Abstraction has 6884 states and 19329 transitions. [2022-01-18 10:59:18,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 19329 transitions. [2022-01-18 10:59:18,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:18,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:18,892 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:18,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 10:59:18,892 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1212045622, now seen corresponding path program 3 times [2022-01-18 10:59:18,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:18,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046718623] [2022-01-18 10:59:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:18,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:19,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046718623] [2022-01-18 10:59:19,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046718623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:19,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:19,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:19,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894045580] [2022-01-18 10:59:19,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:19,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:19,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:19,269 INFO L87 Difference]: Start difference. First operand 6884 states and 19329 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:20,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:20,370 INFO L93 Difference]: Finished difference Result 15904 states and 45390 transitions. [2022-01-18 10:59:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 10:59:20,370 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:20,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:20,397 INFO L225 Difference]: With dead ends: 15904 [2022-01-18 10:59:20,397 INFO L226 Difference]: Without dead ends: 15904 [2022-01-18 10:59:20,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 10:59:20,398 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1569 mSDsluCounter, 3924 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:20,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1569 Valid, 4210 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 10:59:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2022-01-18 10:59:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 6888. [2022-01-18 10:59:20,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 6887 states have (on average 2.8087701466531145) internal successors, (19344), 6887 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 19344 transitions. [2022-01-18 10:59:20,540 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 19344 transitions. Word has length 223 [2022-01-18 10:59:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:20,541 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 19344 transitions. [2022-01-18 10:59:20,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:20,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 19344 transitions. [2022-01-18 10:59:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:20,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:20,549 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:20,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 10:59:20,549 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:20,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:20,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1115900114, now seen corresponding path program 4 times [2022-01-18 10:59:20,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:20,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498057218] [2022-01-18 10:59:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:20,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:20,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:20,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498057218] [2022-01-18 10:59:20,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498057218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:20,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:20,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:20,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82174354] [2022-01-18 10:59:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:20,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:20,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:20,917 INFO L87 Difference]: Start difference. First operand 6888 states and 19344 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:21,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:21,848 INFO L93 Difference]: Finished difference Result 14204 states and 40300 transitions. [2022-01-18 10:59:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:21,849 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:21,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:21,871 INFO L225 Difference]: With dead ends: 14204 [2022-01-18 10:59:21,871 INFO L226 Difference]: Without dead ends: 14204 [2022-01-18 10:59:21,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 10:59:21,872 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1492 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:21,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1492 Valid, 3996 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2022-01-18 10:59:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 6892. [2022-01-18 10:59:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6892 states, 6891 states have (on average 2.809896967058482) internal successors, (19363), 6891 states have internal predecessors, (19363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 19363 transitions. [2022-01-18 10:59:21,988 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 19363 transitions. Word has length 223 [2022-01-18 10:59:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:21,989 INFO L470 AbstractCegarLoop]: Abstraction has 6892 states and 19363 transitions. [2022-01-18 10:59:21,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 19363 transitions. [2022-01-18 10:59:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:21,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:21,997 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:21,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 10:59:21,997 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2075401802, now seen corresponding path program 5 times [2022-01-18 10:59:21,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:21,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056957203] [2022-01-18 10:59:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:21,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:22,357 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:22,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:22,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056957203] [2022-01-18 10:59:22,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056957203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:22,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:22,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:22,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185463568] [2022-01-18 10:59:22,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:22,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:22,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:22,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:22,359 INFO L87 Difference]: Start difference. First operand 6892 states and 19363 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:23,265 INFO L93 Difference]: Finished difference Result 13944 states and 39604 transitions. [2022-01-18 10:59:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:23,265 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:23,287 INFO L225 Difference]: With dead ends: 13944 [2022-01-18 10:59:23,288 INFO L226 Difference]: Without dead ends: 13944 [2022-01-18 10:59:23,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=344, Invalid=1296, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 10:59:23,288 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1495 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:23,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 3708 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-01-18 10:59:23,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 6996. [2022-01-18 10:59:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6995 states have (on average 2.81072194424589) internal successors, (19661), 6995 states have internal predecessors, (19661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 19661 transitions. [2022-01-18 10:59:23,428 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 19661 transitions. Word has length 223 [2022-01-18 10:59:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:23,429 INFO L470 AbstractCegarLoop]: Abstraction has 6996 states and 19661 transitions. [2022-01-18 10:59:23,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 19661 transitions. [2022-01-18 10:59:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:23,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:23,438 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:23,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 10:59:23,438 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:23,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:23,438 INFO L85 PathProgramCache]: Analyzing trace with hash 248086366, now seen corresponding path program 6 times [2022-01-18 10:59:23,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:23,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905395996] [2022-01-18 10:59:23,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:23,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:23,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:23,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905395996] [2022-01-18 10:59:23,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905395996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:23,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:23,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:23,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286833329] [2022-01-18 10:59:23,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:23,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:23,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:23,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:23,751 INFO L87 Difference]: Start difference. First operand 6996 states and 19661 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:24,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:24,795 INFO L93 Difference]: Finished difference Result 21102 states and 60162 transitions. [2022-01-18 10:59:24,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 10:59:24,795 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:24,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:24,831 INFO L225 Difference]: With dead ends: 21102 [2022-01-18 10:59:24,831 INFO L226 Difference]: Without dead ends: 21102 [2022-01-18 10:59:24,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=478, Invalid=1778, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 10:59:24,832 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1722 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:24,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1722 Valid, 4202 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21102 states. [2022-01-18 10:59:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21102 to 7068. [2022-01-18 10:59:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 2.815197396349229) internal successors, (19895), 7067 states have internal predecessors, (19895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 19895 transitions. [2022-01-18 10:59:24,992 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 19895 transitions. Word has length 223 [2022-01-18 10:59:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:24,993 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 19895 transitions. [2022-01-18 10:59:24,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 19895 transitions. [2022-01-18 10:59:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:25,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:25,001 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:25,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 10:59:25,001 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash -786332384, now seen corresponding path program 7 times [2022-01-18 10:59:25,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:25,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50571579] [2022-01-18 10:59:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:25,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:25,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:25,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50571579] [2022-01-18 10:59:25,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50571579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:25,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:25,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 10:59:25,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961273033] [2022-01-18 10:59:25,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:25,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 10:59:25,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:25,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 10:59:25,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-01-18 10:59:25,343 INFO L87 Difference]: Start difference. First operand 7068 states and 19895 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:26,183 INFO L93 Difference]: Finished difference Result 17996 states and 51659 transitions. [2022-01-18 10:59:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 10:59:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:26,209 INFO L225 Difference]: With dead ends: 17996 [2022-01-18 10:59:26,209 INFO L226 Difference]: Without dead ends: 17996 [2022-01-18 10:59:26,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 10:59:26,210 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1575 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:26,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 3417 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:26,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-01-18 10:59:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 7072. [2022-01-18 10:59:26,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 7071 states have (on average 2.815726205628624) internal successors, (19910), 7071 states have internal predecessors, (19910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 19910 transitions. [2022-01-18 10:59:26,342 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 19910 transitions. Word has length 223 [2022-01-18 10:59:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:26,342 INFO L470 AbstractCegarLoop]: Abstraction has 7072 states and 19910 transitions. [2022-01-18 10:59:26,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 19910 transitions. [2022-01-18 10:59:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:26,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:26,350 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:26,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 10:59:26,350 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:26,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:26,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1541613352, now seen corresponding path program 8 times [2022-01-18 10:59:26,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:26,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416609891] [2022-01-18 10:59:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:26,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:26,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:26,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416609891] [2022-01-18 10:59:26,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416609891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:26,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:26,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 10:59:26,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883197763] [2022-01-18 10:59:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:26,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 10:59:26,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 10:59:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-18 10:59:26,664 INFO L87 Difference]: Start difference. First operand 7072 states and 19910 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:27,364 INFO L93 Difference]: Finished difference Result 16296 states and 46569 transitions. [2022-01-18 10:59:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:27,364 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:27,390 INFO L225 Difference]: With dead ends: 16296 [2022-01-18 10:59:27,390 INFO L226 Difference]: Without dead ends: 16296 [2022-01-18 10:59:27,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=380, Invalid=1426, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 10:59:27,391 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1334 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:27,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3504 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-01-18 10:59:27,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 7076. [2022-01-18 10:59:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7076 states, 7075 states have (on average 2.8168197879858656) internal successors, (19929), 7075 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 19929 transitions. [2022-01-18 10:59:27,522 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 19929 transitions. Word has length 223 [2022-01-18 10:59:27,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:27,522 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 19929 transitions. [2022-01-18 10:59:27,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 19929 transitions. [2022-01-18 10:59:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:27,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:27,531 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:27,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 10:59:27,531 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:27,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852256, now seen corresponding path program 9 times [2022-01-18 10:59:27,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:27,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286179849] [2022-01-18 10:59:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:27,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:27,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:27,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286179849] [2022-01-18 10:59:27,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286179849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:27,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:27,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 10:59:27,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506634079] [2022-01-18 10:59:27,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:27,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 10:59:27,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:27,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 10:59:27,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-18 10:59:27,858 INFO L87 Difference]: Start difference. First operand 7076 states and 19929 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:28,564 INFO L93 Difference]: Finished difference Result 16036 states and 45873 transitions. [2022-01-18 10:59:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:28,564 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:28,589 INFO L225 Difference]: With dead ends: 16036 [2022-01-18 10:59:28,589 INFO L226 Difference]: Without dead ends: 16036 [2022-01-18 10:59:28,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=390, Invalid=1416, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 10:59:28,590 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 1346 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:28,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 3120 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:28,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-01-18 10:59:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 7032. [2022-01-18 10:59:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 2.8104110368368653) internal successors, (19760), 7031 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 19760 transitions. [2022-01-18 10:59:28,717 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 19760 transitions. Word has length 223 [2022-01-18 10:59:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:28,717 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 19760 transitions. [2022-01-18 10:59:28,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 19760 transitions. [2022-01-18 10:59:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:28,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:28,726 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:28,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 10:59:28,726 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:28,726 INFO L85 PathProgramCache]: Analyzing trace with hash 559291998, now seen corresponding path program 10 times [2022-01-18 10:59:28,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:28,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361822497] [2022-01-18 10:59:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:28,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:29,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:29,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361822497] [2022-01-18 10:59:29,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361822497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:29,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:29,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:29,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022919510] [2022-01-18 10:59:29,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:29,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:29,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:29,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:29,089 INFO L87 Difference]: Start difference. First operand 7032 states and 19760 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:29,946 INFO L93 Difference]: Finished difference Result 16588 states and 47447 transitions. [2022-01-18 10:59:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 10:59:29,946 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:29,972 INFO L225 Difference]: With dead ends: 16588 [2022-01-18 10:59:29,973 INFO L226 Difference]: Without dead ends: 16588 [2022-01-18 10:59:29,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=429, Invalid=1641, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 10:59:29,974 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1380 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:29,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 3451 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2022-01-18 10:59:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 7040. [2022-01-18 10:59:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-01-18 10:59:30,106 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-01-18 10:59:30,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:30,106 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-01-18 10:59:30,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-01-18 10:59:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:30,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:30,115 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:30,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 10:59:30,115 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1407729562, now seen corresponding path program 11 times [2022-01-18 10:59:30,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927641954] [2022-01-18 10:59:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:30,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:30,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:30,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927641954] [2022-01-18 10:59:30,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927641954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:30,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:30,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:30,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719154246] [2022-01-18 10:59:30,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:30,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:30,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:30,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:30,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:30,414 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:31,180 INFO L93 Difference]: Finished difference Result 15344 states and 43775 transitions. [2022-01-18 10:59:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:31,180 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:31,205 INFO L225 Difference]: With dead ends: 15344 [2022-01-18 10:59:31,205 INFO L226 Difference]: Without dead ends: 15344 [2022-01-18 10:59:31,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 10:59:31,206 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1428 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:31,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 3218 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2022-01-18 10:59:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 7044. [2022-01-18 10:59:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-01-18 10:59:31,332 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-01-18 10:59:31,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:31,332 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-01-18 10:59:31,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-01-18 10:59:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:31,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:31,340 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:31,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 10:59:31,340 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:31,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash -448227874, now seen corresponding path program 12 times [2022-01-18 10:59:31,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:31,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013749927] [2022-01-18 10:59:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:31,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:31,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013749927] [2022-01-18 10:59:31,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013749927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:31,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:31,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:31,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189018539] [2022-01-18 10:59:31,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:31,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:31,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:31,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:31,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:31,676 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:32,480 INFO L93 Difference]: Finished difference Result 15084 states and 43079 transitions. [2022-01-18 10:59:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:32,480 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:32,503 INFO L225 Difference]: With dead ends: 15084 [2022-01-18 10:59:32,503 INFO L226 Difference]: Without dead ends: 15084 [2022-01-18 10:59:32,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 10:59:32,504 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1535 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:32,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 2974 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:32,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15084 states. [2022-01-18 10:59:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15084 to 7036. [2022-01-18 10:59:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 2.8103766879886285) internal successors, (19771), 7035 states have internal predecessors, (19771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 19771 transitions. [2022-01-18 10:59:32,621 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 19771 transitions. Word has length 223 [2022-01-18 10:59:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:32,621 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 19771 transitions. [2022-01-18 10:59:32,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 19771 transitions. [2022-01-18 10:59:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:32,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:32,629 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:32,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 10:59:32,629 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -526466794, now seen corresponding path program 13 times [2022-01-18 10:59:32,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:32,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620663297] [2022-01-18 10:59:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:32,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:32,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:32,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620663297] [2022-01-18 10:59:32,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620663297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:32,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:32,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:32,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669978795] [2022-01-18 10:59:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:32,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:32,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:32,930 INFO L87 Difference]: Start difference. First operand 7036 states and 19771 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:33,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:33,701 INFO L93 Difference]: Finished difference Result 14852 states and 42250 transitions. [2022-01-18 10:59:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:33,701 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:33,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:33,725 INFO L225 Difference]: With dead ends: 14852 [2022-01-18 10:59:33,726 INFO L226 Difference]: Without dead ends: 14852 [2022-01-18 10:59:33,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 10:59:33,726 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1315 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:33,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 3492 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:33,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2022-01-18 10:59:33,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7044. [2022-01-18 10:59:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-01-18 10:59:33,848 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-01-18 10:59:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:33,849 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-01-18 10:59:33,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-01-18 10:59:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:33,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:33,857 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:33,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 10:59:33,857 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash 433034894, now seen corresponding path program 14 times [2022-01-18 10:59:33,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:33,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439522916] [2022-01-18 10:59:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:33,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:34,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:34,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439522916] [2022-01-18 10:59:34,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439522916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:34,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:34,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:34,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808925923] [2022-01-18 10:59:34,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:34,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:34,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:34,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:34,168 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:34,977 INFO L93 Difference]: Finished difference Result 14676 states and 41797 transitions. [2022-01-18 10:59:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 10:59:34,977 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:34,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:35,000 INFO L225 Difference]: With dead ends: 14676 [2022-01-18 10:59:35,000 INFO L226 Difference]: Without dead ends: 14676 [2022-01-18 10:59:35,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 10:59:35,001 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1301 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:35,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 3556 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-01-18 10:59:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 7040. [2022-01-18 10:59:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-01-18 10:59:35,125 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-01-18 10:59:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:35,125 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-01-18 10:59:35,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-01-18 10:59:35,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:35,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:35,134 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:35,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 10:59:35,134 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:35,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:35,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740864, now seen corresponding path program 15 times [2022-01-18 10:59:35,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:35,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479713328] [2022-01-18 10:59:35,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:35,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:35,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479713328] [2022-01-18 10:59:35,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479713328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:35,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:35,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 10:59:35,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081076048] [2022-01-18 10:59:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:35,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 10:59:35,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 10:59:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-01-18 10:59:35,473 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:36,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:36,307 INFO L93 Difference]: Finished difference Result 15708 states and 44747 transitions. [2022-01-18 10:59:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 10:59:36,308 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:36,332 INFO L225 Difference]: With dead ends: 15708 [2022-01-18 10:59:36,332 INFO L226 Difference]: Without dead ends: 15708 [2022-01-18 10:59:36,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 10:59:36,333 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1587 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:36,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1587 Valid, 3171 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2022-01-18 10:59:36,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 7144. [2022-01-18 10:59:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 7143 states have (on average 2.8117037659246815) internal successors, (20084), 7143 states have internal predecessors, (20084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 20084 transitions. [2022-01-18 10:59:36,459 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 20084 transitions. Word has length 223 [2022-01-18 10:59:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:36,460 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 20084 transitions. [2022-01-18 10:59:36,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 20084 transitions. [2022-01-18 10:59:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:36,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:36,468 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:36,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 10:59:36,468 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 550123268, now seen corresponding path program 16 times [2022-01-18 10:59:36,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:36,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886069992] [2022-01-18 10:59:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:36,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:36,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886069992] [2022-01-18 10:59:36,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886069992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:36,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:36,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:36,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765861953] [2022-01-18 10:59:36,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:36,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:36,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:36,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:36,699 INFO L87 Difference]: Start difference. First operand 7144 states and 20084 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:37,383 INFO L93 Difference]: Finished difference Result 24183 states and 68741 transitions. [2022-01-18 10:59:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 10:59:37,383 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:37,427 INFO L225 Difference]: With dead ends: 24183 [2022-01-18 10:59:37,427 INFO L226 Difference]: Without dead ends: 24183 [2022-01-18 10:59:37,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 10:59:37,428 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1579 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:37,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 3954 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:37,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-01-18 10:59:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 7540. [2022-01-18 10:59:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-01-18 10:59:37,610 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-01-18 10:59:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:37,610 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-01-18 10:59:37,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-01-18 10:59:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:37,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:37,619 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:37,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 10:59:37,619 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -484295482, now seen corresponding path program 17 times [2022-01-18 10:59:37,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:37,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815569675] [2022-01-18 10:59:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:37,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:37,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:37,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815569675] [2022-01-18 10:59:37,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815569675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:37,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:37,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:37,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261250887] [2022-01-18 10:59:37,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:37,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:37,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:37,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:37,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:37,837 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:38,398 INFO L93 Difference]: Finished difference Result 21077 states and 60238 transitions. [2022-01-18 10:59:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:38,398 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:38,473 INFO L225 Difference]: With dead ends: 21077 [2022-01-18 10:59:38,474 INFO L226 Difference]: Without dead ends: 21077 [2022-01-18 10:59:38,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:38,474 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1044 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:38,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 3375 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2022-01-18 10:59:38,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 7544. [2022-01-18 10:59:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-01-18 10:59:38,610 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-01-18 10:59:38,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:38,610 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-01-18 10:59:38,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-01-18 10:59:38,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:38,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:38,620 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:38,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 10:59:38,620 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:38,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1843650254, now seen corresponding path program 18 times [2022-01-18 10:59:38,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:38,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806316368] [2022-01-18 10:59:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:38,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:38,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:38,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806316368] [2022-01-18 10:59:38,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806316368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:38,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:38,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:38,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123999258] [2022-01-18 10:59:38,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:38,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:38,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:38,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:38,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:38,821 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:39,372 INFO L93 Difference]: Finished difference Result 19377 states and 55148 transitions. [2022-01-18 10:59:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:39,407 INFO L225 Difference]: With dead ends: 19377 [2022-01-18 10:59:39,407 INFO L226 Difference]: Without dead ends: 19377 [2022-01-18 10:59:39,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:39,408 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1367 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:39,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 3644 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2022-01-18 10:59:39,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 7548. [2022-01-18 10:59:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-01-18 10:59:39,560 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-01-18 10:59:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:39,560 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-01-18 10:59:39,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-01-18 10:59:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:39,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:39,569 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:39,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 10:59:39,569 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1491815354, now seen corresponding path program 19 times [2022-01-18 10:59:39,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053902479] [2022-01-18 10:59:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:39,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:39,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:39,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053902479] [2022-01-18 10:59:39,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053902479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:39,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:39,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:39,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43598387] [2022-01-18 10:59:39,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:39,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:39,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:39,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:39,798 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:40,335 INFO L93 Difference]: Finished difference Result 19117 states and 54452 transitions. [2022-01-18 10:59:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:40,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:40,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:40,367 INFO L225 Difference]: With dead ends: 19117 [2022-01-18 10:59:40,367 INFO L226 Difference]: Without dead ends: 19117 [2022-01-18 10:59:40,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:40,368 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1173 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:40,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 3242 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:40,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19117 states. [2022-01-18 10:59:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19117 to 7504. [2022-01-18 10:59:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-01-18 10:59:40,520 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-01-18 10:59:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:40,521 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-01-18 10:59:40,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-01-18 10:59:40,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:40,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:40,530 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:40,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 10:59:40,530 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 861328900, now seen corresponding path program 20 times [2022-01-18 10:59:40,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:40,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588726376] [2022-01-18 10:59:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:40,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:40,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:40,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588726376] [2022-01-18 10:59:40,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588726376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:40,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:40,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:40,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378976925] [2022-01-18 10:59:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:40,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:40,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:40,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:40,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:40,759 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:41,384 INFO L93 Difference]: Finished difference Result 21573 states and 61766 transitions. [2022-01-18 10:59:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:41,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:41,419 INFO L225 Difference]: With dead ends: 21573 [2022-01-18 10:59:41,419 INFO L226 Difference]: Without dead ends: 21573 [2022-01-18 10:59:41,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:41,420 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1381 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:41,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 3358 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2022-01-18 10:59:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 7512. [2022-01-18 10:59:41,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:41,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-01-18 10:59:41,584 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-01-18 10:59:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:41,584 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-01-18 10:59:41,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:41,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-01-18 10:59:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:41,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:41,593 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:41,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 10:59:41,593 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1105692660, now seen corresponding path program 21 times [2022-01-18 10:59:41,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:41,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672145947] [2022-01-18 10:59:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:41,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:41,813 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:41,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:41,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672145947] [2022-01-18 10:59:41,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672145947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:41,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:41,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:41,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214987598] [2022-01-18 10:59:41,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:41,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:41,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:41,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:41,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:41,815 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:42,324 INFO L93 Difference]: Finished difference Result 20329 states and 58094 transitions. [2022-01-18 10:59:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:42,357 INFO L225 Difference]: With dead ends: 20329 [2022-01-18 10:59:42,357 INFO L226 Difference]: Without dead ends: 20329 [2022-01-18 10:59:42,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:42,358 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1303 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:42,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2942 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20329 states. [2022-01-18 10:59:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20329 to 7516. [2022-01-18 10:59:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-01-18 10:59:42,517 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-01-18 10:59:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:42,518 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-01-18 10:59:42,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-01-18 10:59:42,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:42,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:42,527 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:42,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 10:59:42,527 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:42,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash -146190972, now seen corresponding path program 22 times [2022-01-18 10:59:42,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:42,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188826069] [2022-01-18 10:59:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:42,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:42,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:42,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188826069] [2022-01-18 10:59:42,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188826069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:42,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:42,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:42,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516068777] [2022-01-18 10:59:42,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:42,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:42,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:42,752 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:43,277 INFO L93 Difference]: Finished difference Result 20069 states and 57398 transitions. [2022-01-18 10:59:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:43,310 INFO L225 Difference]: With dead ends: 20069 [2022-01-18 10:59:43,310 INFO L226 Difference]: Without dead ends: 20069 [2022-01-18 10:59:43,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:43,314 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1200 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:43,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 3015 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2022-01-18 10:59:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 7508. [2022-01-18 10:59:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-01-18 10:59:43,502 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-01-18 10:59:43,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:43,502 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-01-18 10:59:43,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-01-18 10:59:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:43,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:43,512 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:43,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 10:59:43,512 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash -224429892, now seen corresponding path program 23 times [2022-01-18 10:59:43,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:43,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371958398] [2022-01-18 10:59:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:43,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:43,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:43,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371958398] [2022-01-18 10:59:43,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371958398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:43,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:43,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:43,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564309692] [2022-01-18 10:59:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:43,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:43,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:43,736 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:44,247 INFO L93 Difference]: Finished difference Result 19837 states and 56569 transitions. [2022-01-18 10:59:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:44,279 INFO L225 Difference]: With dead ends: 19837 [2022-01-18 10:59:44,280 INFO L226 Difference]: Without dead ends: 19837 [2022-01-18 10:59:44,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:44,280 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1096 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:44,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3231 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2022-01-18 10:59:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 7516. [2022-01-18 10:59:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-01-18 10:59:44,437 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-01-18 10:59:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:44,437 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-01-18 10:59:44,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:44,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-01-18 10:59:44,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:44,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:44,446 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:44,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 10:59:44,446 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:44,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 735071796, now seen corresponding path program 24 times [2022-01-18 10:59:44,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:44,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042716339] [2022-01-18 10:59:44,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:44,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:44,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:44,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042716339] [2022-01-18 10:59:44,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042716339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:44,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:44,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:44,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482244022] [2022-01-18 10:59:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:44,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:44,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:44,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:44,679 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:45,162 INFO L93 Difference]: Finished difference Result 19661 states and 56116 transitions. [2022-01-18 10:59:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:45,193 INFO L225 Difference]: With dead ends: 19661 [2022-01-18 10:59:45,193 INFO L226 Difference]: Without dead ends: 19661 [2022-01-18 10:59:45,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:45,194 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 947 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:45,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 3148 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19661 states. [2022-01-18 10:59:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19661 to 7512. [2022-01-18 10:59:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-01-18 10:59:45,349 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-01-18 10:59:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:45,350 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-01-18 10:59:45,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-01-18 10:59:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:45,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:45,359 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:45,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 10:59:45,359 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash -960703962, now seen corresponding path program 25 times [2022-01-18 10:59:45,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:45,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585750596] [2022-01-18 10:59:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:45,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:45,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585750596] [2022-01-18 10:59:45,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585750596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:45,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:45,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:45,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078709065] [2022-01-18 10:59:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:45,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:45,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:45,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:45,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:45,591 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:46,179 INFO L93 Difference]: Finished difference Result 20797 states and 59364 transitions. [2022-01-18 10:59:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:46,179 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:46,211 INFO L225 Difference]: With dead ends: 20797 [2022-01-18 10:59:46,211 INFO L226 Difference]: Without dead ends: 20797 [2022-01-18 10:59:46,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:46,211 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1160 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:46,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3410 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2022-01-18 10:59:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 7468. [2022-01-18 10:59:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7467 states have (on average 2.80902638275077) internal successors, (20975), 7467 states have internal predecessors, (20975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 20975 transitions. [2022-01-18 10:59:46,396 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 20975 transitions. Word has length 223 [2022-01-18 10:59:46,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:46,396 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 20975 transitions. [2022-01-18 10:59:46,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:46,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 20975 transitions. [2022-01-18 10:59:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:46,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:46,405 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:46,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 10:59:46,405 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash -353734266, now seen corresponding path program 26 times [2022-01-18 10:59:46,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:46,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986171121] [2022-01-18 10:59:46,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:46,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:46,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:46,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986171121] [2022-01-18 10:59:46,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986171121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:46,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:46,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:46,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244578061] [2022-01-18 10:59:46,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:46,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:46,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:46,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:46,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:46,640 INFO L87 Difference]: Start difference. First operand 7468 states and 20975 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:47,277 INFO L93 Difference]: Finished difference Result 19585 states and 55795 transitions. [2022-01-18 10:59:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:47,279 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:47,311 INFO L225 Difference]: With dead ends: 19585 [2022-01-18 10:59:47,311 INFO L226 Difference]: Without dead ends: 19585 [2022-01-18 10:59:47,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:47,312 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1040 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:47,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3709 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:47,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19585 states. [2022-01-18 10:59:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19585 to 7512. [2022-01-18 10:59:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-01-18 10:59:47,466 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-01-18 10:59:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:47,466 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-01-18 10:59:47,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-01-18 10:59:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:47,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:47,475 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:47,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 10:59:47,475 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:47,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1974211470, now seen corresponding path program 27 times [2022-01-18 10:59:47,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:47,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279232418] [2022-01-18 10:59:47,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:47,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:47,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:47,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279232418] [2022-01-18 10:59:47,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279232418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:47,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:47,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:47,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210338399] [2022-01-18 10:59:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:47,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:47,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:47,690 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:48,226 INFO L93 Difference]: Finished difference Result 18341 states and 52123 transitions. [2022-01-18 10:59:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:48,256 INFO L225 Difference]: With dead ends: 18341 [2022-01-18 10:59:48,256 INFO L226 Difference]: Without dead ends: 18341 [2022-01-18 10:59:48,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:48,257 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1131 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:48,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 3196 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2022-01-18 10:59:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 7516. [2022-01-18 10:59:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-01-18 10:59:48,407 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-01-18 10:59:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:48,407 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-01-18 10:59:48,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-01-18 10:59:48,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:48,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:48,416 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:48,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 10:59:48,416 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:48,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:48,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1361254138, now seen corresponding path program 28 times [2022-01-18 10:59:48,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:48,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535831449] [2022-01-18 10:59:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:48,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:48,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:48,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535831449] [2022-01-18 10:59:48,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535831449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:48,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:48,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:48,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318760865] [2022-01-18 10:59:48,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:48,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:48,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:48,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:48,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:48,645 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:49,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:49,145 INFO L93 Difference]: Finished difference Result 18081 states and 51427 transitions. [2022-01-18 10:59:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:49,145 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:49,174 INFO L225 Difference]: With dead ends: 18081 [2022-01-18 10:59:49,174 INFO L226 Difference]: Without dead ends: 18081 [2022-01-18 10:59:49,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:49,175 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 1279 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:49,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1279 Valid, 3210 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:49,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-01-18 10:59:49,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 7508. [2022-01-18 10:59:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-01-18 10:59:49,339 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-01-18 10:59:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:49,339 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-01-18 10:59:49,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-01-18 10:59:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:49,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:49,348 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:49,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 10:59:49,348 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1439493058, now seen corresponding path program 29 times [2022-01-18 10:59:49,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:49,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168635329] [2022-01-18 10:59:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:49,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:49,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:49,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168635329] [2022-01-18 10:59:49,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168635329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:49,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:49,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:49,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246836538] [2022-01-18 10:59:49,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:49,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:49,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:49,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:49,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:49,562 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:50,069 INFO L93 Difference]: Finished difference Result 18749 states and 53401 transitions. [2022-01-18 10:59:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:50,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:50,101 INFO L225 Difference]: With dead ends: 18749 [2022-01-18 10:59:50,101 INFO L226 Difference]: Without dead ends: 18749 [2022-01-18 10:59:50,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:50,101 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 933 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:50,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 3298 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18749 states. [2022-01-18 10:59:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18749 to 7516. [2022-01-18 10:59:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-01-18 10:59:50,249 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-01-18 10:59:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:50,250 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-01-18 10:59:50,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:50,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-01-18 10:59:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:50,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:50,259 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:50,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 10:59:50,259 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:50,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash -479991370, now seen corresponding path program 30 times [2022-01-18 10:59:50,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:50,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687695033] [2022-01-18 10:59:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:50,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:50,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687695033] [2022-01-18 10:59:50,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687695033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:50,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:50,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:50,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311706867] [2022-01-18 10:59:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:50,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:50,483 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:50,982 INFO L93 Difference]: Finished difference Result 18573 states and 52948 transitions. [2022-01-18 10:59:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:51,012 INFO L225 Difference]: With dead ends: 18573 [2022-01-18 10:59:51,012 INFO L226 Difference]: Without dead ends: 18573 [2022-01-18 10:59:51,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:51,012 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1249 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:51,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 3193 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2022-01-18 10:59:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 7512. [2022-01-18 10:59:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-01-18 10:59:51,159 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-01-18 10:59:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:51,160 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-01-18 10:59:51,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-01-18 10:59:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:51,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:51,168 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:51,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 10:59:51,168 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:51,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:51,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2119200168, now seen corresponding path program 31 times [2022-01-18 10:59:51,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:51,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178344687] [2022-01-18 10:59:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:51,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:51,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:51,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178344687] [2022-01-18 10:59:51,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178344687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:51,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:51,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:51,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456689505] [2022-01-18 10:59:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:51,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:51,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:51,399 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:51,930 INFO L93 Difference]: Finished difference Result 19757 states and 56328 transitions. [2022-01-18 10:59:51,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:51,930 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:51,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:51,962 INFO L225 Difference]: With dead ends: 19757 [2022-01-18 10:59:51,962 INFO L226 Difference]: Without dead ends: 19757 [2022-01-18 10:59:51,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:51,963 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1195 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:51,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 2993 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2022-01-18 10:59:52,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 7504. [2022-01-18 10:59:52,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-01-18 10:59:52,173 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-01-18 10:59:52,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:52,173 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-01-18 10:59:52,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-01-18 10:59:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:52,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:52,181 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:52,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 10:59:52,181 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:52,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1905302994, now seen corresponding path program 32 times [2022-01-18 10:59:52,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:52,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007891354] [2022-01-18 10:59:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:52,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:52,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:52,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007891354] [2022-01-18 10:59:52,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007891354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:52,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:52,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:52,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628996398] [2022-01-18 10:59:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:52,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:52,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:52,420 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:52,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:52,966 INFO L93 Difference]: Finished difference Result 17845 states and 50587 transitions. [2022-01-18 10:59:52,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:52,995 INFO L225 Difference]: With dead ends: 17845 [2022-01-18 10:59:52,995 INFO L226 Difference]: Without dead ends: 17845 [2022-01-18 10:59:52,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:52,996 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1428 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:52,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 3756 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:53,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17845 states. [2022-01-18 10:59:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17845 to 7548. [2022-01-18 10:59:53,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-01-18 10:59:53,142 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-01-18 10:59:53,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:53,142 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-01-18 10:59:53,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-01-18 10:59:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:53,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:53,151 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:53,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 10:59:53,151 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:53,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1430162614, now seen corresponding path program 33 times [2022-01-18 10:59:53,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:53,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43031343] [2022-01-18 10:59:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:53,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:53,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:53,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43031343] [2022-01-18 10:59:53,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43031343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:53,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:53,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:53,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149543708] [2022-01-18 10:59:53,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:53,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:53,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:53,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:53,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:53,355 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:53,828 INFO L93 Difference]: Finished difference Result 17669 states and 50134 transitions. [2022-01-18 10:59:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:53,856 INFO L225 Difference]: With dead ends: 17669 [2022-01-18 10:59:53,856 INFO L226 Difference]: Without dead ends: 17669 [2022-01-18 10:59:53,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:53,859 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1333 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:53,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 3127 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17669 states. [2022-01-18 10:59:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17669 to 7544. [2022-01-18 10:59:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-01-18 10:59:54,001 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-01-18 10:59:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:54,001 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-01-18 10:59:54,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-01-18 10:59:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:54,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:54,010 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:54,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 10:59:54,010 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:54,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1169028924, now seen corresponding path program 34 times [2022-01-18 10:59:54,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:54,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856894908] [2022-01-18 10:59:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:54,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:54,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:54,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856894908] [2022-01-18 10:59:54,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856894908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:54,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:54,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:54,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169841187] [2022-01-18 10:59:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:54,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:54,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:54,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:54,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:54,229 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:54,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:54,807 INFO L93 Difference]: Finished difference Result 19309 states and 54928 transitions. [2022-01-18 10:59:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:54,808 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:54,838 INFO L225 Difference]: With dead ends: 19309 [2022-01-18 10:59:54,839 INFO L226 Difference]: Without dead ends: 19309 [2022-01-18 10:59:54,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:54,839 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1217 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:54,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1217 Valid, 3586 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19309 states. [2022-01-18 10:59:54,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19309 to 7540. [2022-01-18 10:59:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-01-18 10:59:54,990 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-01-18 10:59:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:54,990 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-01-18 10:59:54,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-01-18 10:59:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:54,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:54,999 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:54,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 10:59:54,999 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:55,000 INFO L85 PathProgramCache]: Analyzing trace with hash 613147846, now seen corresponding path program 35 times [2022-01-18 10:59:55,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:55,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047932039] [2022-01-18 10:59:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:55,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:55,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:55,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047932039] [2022-01-18 10:59:55,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047932039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:55,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:55,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:55,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576926797] [2022-01-18 10:59:55,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:55,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:55,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:55,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:55,218 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:55,862 INFO L93 Difference]: Finished difference Result 22163 states and 62736 transitions. [2022-01-18 10:59:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 10:59:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:55,898 INFO L225 Difference]: With dead ends: 22163 [2022-01-18 10:59:55,898 INFO L226 Difference]: Without dead ends: 22163 [2022-01-18 10:59:55,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 10:59:55,899 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1429 mSDsluCounter, 3558 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:55,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1429 Valid, 3882 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22163 states. [2022-01-18 10:59:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22163 to 8476. [2022-01-18 10:59:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 2.818997050147493) internal successors, (23891), 8475 states have internal predecessors, (23891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 23891 transitions. [2022-01-18 10:59:56,075 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 23891 transitions. Word has length 223 [2022-01-18 10:59:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:56,075 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 23891 transitions. [2022-01-18 10:59:56,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 23891 transitions. [2022-01-18 10:59:56,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:56,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:56,085 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:56,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 10:59:56,085 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:56,086 INFO L85 PathProgramCache]: Analyzing trace with hash -638066722, now seen corresponding path program 36 times [2022-01-18 10:59:56,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:56,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795875137] [2022-01-18 10:59:56,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:56,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:56,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795875137] [2022-01-18 10:59:56,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795875137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:56,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:56,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:56,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255934032] [2022-01-18 10:59:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:56,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:56,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:56,310 INFO L87 Difference]: Start difference. First operand 8476 states and 23891 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:56,977 INFO L93 Difference]: Finished difference Result 23424 states and 66686 transitions. [2022-01-18 10:59:56,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 10:59:56,977 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:56,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:57,015 INFO L225 Difference]: With dead ends: 23424 [2022-01-18 10:59:57,015 INFO L226 Difference]: Without dead ends: 23424 [2022-01-18 10:59:57,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 10:59:57,016 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1527 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:57,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 3987 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:57,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23424 states. [2022-01-18 10:59:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23424 to 8620. [2022-01-18 10:59:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-01-18 10:59:57,201 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-01-18 10:59:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:57,201 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-01-18 10:59:57,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-01-18 10:59:57,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:57,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:57,211 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:57,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 10:59:57,211 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:57,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash 114748502, now seen corresponding path program 37 times [2022-01-18 10:59:57,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:57,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268597515] [2022-01-18 10:59:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:57,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:57,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268597515] [2022-01-18 10:59:57,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268597515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:57,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:57,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:57,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146723012] [2022-01-18 10:59:57,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:57,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:57,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:57,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:57,424 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:58,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:58,044 INFO L93 Difference]: Finished difference Result 20879 states and 59701 transitions. [2022-01-18 10:59:58,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 10:59:58,044 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:58,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:58,078 INFO L225 Difference]: With dead ends: 20879 [2022-01-18 10:59:58,078 INFO L226 Difference]: Without dead ends: 20879 [2022-01-18 10:59:58,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 10:59:58,079 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1018 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:58,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 4194 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:59:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2022-01-18 10:59:58,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 8624. [2022-01-18 10:59:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:58,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-01-18 10:59:58,251 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-01-18 10:59:58,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:58,251 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-01-18 10:59:58,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-01-18 10:59:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:58,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:58,261 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:58,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 10:59:58,261 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1852273058, now seen corresponding path program 38 times [2022-01-18 10:59:58,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:58,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408460518] [2022-01-18 10:59:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:58,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:58,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:58,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408460518] [2022-01-18 10:59:58,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408460518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:58,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:58,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:58,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035932854] [2022-01-18 10:59:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:58,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:58,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:58,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:58,490 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:58,980 INFO L93 Difference]: Finished difference Result 19179 states and 54611 transitions. [2022-01-18 10:59:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:59,010 INFO L225 Difference]: With dead ends: 19179 [2022-01-18 10:59:59,010 INFO L226 Difference]: Without dead ends: 19179 [2022-01-18 10:59:59,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:59,011 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 950 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:59,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 3587 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2022-01-18 10:59:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 8628. [2022-01-18 10:59:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-01-18 10:59:59,176 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-01-18 10:59:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:59:59,176 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-01-18 10:59:59,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-01-18 10:59:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 10:59:59,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:59:59,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:59:59,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 10:59:59,186 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 10:59:59,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:59:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash -892771370, now seen corresponding path program 39 times [2022-01-18 10:59:59,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:59:59,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469168431] [2022-01-18 10:59:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:59:59,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:59:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:59:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 10:59:59,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:59:59,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469168431] [2022-01-18 10:59:59,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469168431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:59:59,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:59:59,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 10:59:59,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409345842] [2022-01-18 10:59:59,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:59:59,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 10:59:59,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:59:59,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 10:59:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 10:59:59,388 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:59:59,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:59:59,914 INFO L93 Difference]: Finished difference Result 18919 states and 53915 transitions. [2022-01-18 10:59:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 10:59:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 10:59:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:59:59,944 INFO L225 Difference]: With dead ends: 18919 [2022-01-18 10:59:59,944 INFO L226 Difference]: Without dead ends: 18919 [2022-01-18 10:59:59,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 10:59:59,944 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1247 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:59:59,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 3845 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:59:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2022-01-18 11:00:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 8584. [2022-01-18 11:00:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-01-18 11:00:00,101 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-01-18 11:00:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:00,102 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-01-18 11:00:00,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-01-18 11:00:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:00,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:00,111 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:00,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 11:00:00,112 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1691161464, now seen corresponding path program 40 times [2022-01-18 11:00:00,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:00,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998800245] [2022-01-18 11:00:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:00,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:00,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:00,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998800245] [2022-01-18 11:00:00,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998800245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:00,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:00,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:00,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652523754] [2022-01-18 11:00:00,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:00,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:00,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:00,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:00,328 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:00,907 INFO L93 Difference]: Finished difference Result 21375 states and 61229 transitions. [2022-01-18 11:00:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:00,942 INFO L225 Difference]: With dead ends: 21375 [2022-01-18 11:00:00,943 INFO L226 Difference]: Without dead ends: 21375 [2022-01-18 11:00:00,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:00,943 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1334 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:00,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3338 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21375 states. [2022-01-18 11:00:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21375 to 8592. [2022-01-18 11:00:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-01-18 11:00:01,122 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-01-18 11:00:01,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:01,123 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-01-18 11:00:01,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:01,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-01-18 11:00:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:01,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:01,133 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:01,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 11:00:01,133 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:01,133 INFO L85 PathProgramCache]: Analyzing trace with hash 636784272, now seen corresponding path program 41 times [2022-01-18 11:00:01,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:01,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607660362] [2022-01-18 11:00:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:01,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:01,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:01,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607660362] [2022-01-18 11:00:01,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607660362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:01,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:01,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:01,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133398537] [2022-01-18 11:00:01,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:01,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:01,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:01,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:01,382 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:01,921 INFO L93 Difference]: Finished difference Result 20131 states and 57557 transitions. [2022-01-18 11:00:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:01,954 INFO L225 Difference]: With dead ends: 20131 [2022-01-18 11:00:01,954 INFO L226 Difference]: Without dead ends: 20131 [2022-01-18 11:00:01,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:01,955 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 931 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:01,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 3137 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2022-01-18 11:00:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 8596. [2022-01-18 11:00:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-01-18 11:00:02,125 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-01-18 11:00:02,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:02,125 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-01-18 11:00:02,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:02,125 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-01-18 11:00:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:02,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:02,135 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:02,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 11:00:02,135 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1596285960, now seen corresponding path program 42 times [2022-01-18 11:00:02,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:02,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325928260] [2022-01-18 11:00:02,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:02,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:02,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325928260] [2022-01-18 11:00:02,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325928260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:02,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:02,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:02,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147591369] [2022-01-18 11:00:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:02,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:02,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:02,346 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:02,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:02,876 INFO L93 Difference]: Finished difference Result 19871 states and 56861 transitions. [2022-01-18 11:00:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:02,876 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:02,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:02,908 INFO L225 Difference]: With dead ends: 19871 [2022-01-18 11:00:02,908 INFO L226 Difference]: Without dead ends: 19871 [2022-01-18 11:00:02,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:02,909 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1395 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:02,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 3202 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19871 states. [2022-01-18 11:00:03,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19871 to 8588. [2022-01-18 11:00:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-01-18 11:00:03,074 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-01-18 11:00:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:03,074 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-01-18 11:00:03,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-01-18 11:00:03,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:03,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:03,084 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:03,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 11:00:03,084 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:03,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:03,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047040, now seen corresponding path program 43 times [2022-01-18 11:00:03,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:03,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510398457] [2022-01-18 11:00:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:03,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:03,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:03,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510398457] [2022-01-18 11:00:03,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510398457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:03,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:03,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:03,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195210214] [2022-01-18 11:00:03,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:03,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:03,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:03,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:03,323 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:03,834 INFO L93 Difference]: Finished difference Result 19639 states and 56032 transitions. [2022-01-18 11:00:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:03,866 INFO L225 Difference]: With dead ends: 19639 [2022-01-18 11:00:03,867 INFO L226 Difference]: Without dead ends: 19639 [2022-01-18 11:00:03,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:03,867 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1080 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:03,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 3431 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:03,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19639 states. [2022-01-18 11:00:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19639 to 8596. [2022-01-18 11:00:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-01-18 11:00:04,038 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-01-18 11:00:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:04,039 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-01-18 11:00:04,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-01-18 11:00:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:04,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:04,049 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:04,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 11:00:04,049 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1817418568, now seen corresponding path program 44 times [2022-01-18 11:00:04,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:04,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841156389] [2022-01-18 11:00:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:04,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:04,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841156389] [2022-01-18 11:00:04,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841156389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:04,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:04,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:04,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746771707] [2022-01-18 11:00:04,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:04,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:04,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:04,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:04,265 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:04,799 INFO L93 Difference]: Finished difference Result 19463 states and 55579 transitions. [2022-01-18 11:00:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:04,830 INFO L225 Difference]: With dead ends: 19463 [2022-01-18 11:00:04,830 INFO L226 Difference]: Without dead ends: 19463 [2022-01-18 11:00:04,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:04,830 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1389 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:04,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1389 Valid, 3395 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-01-18 11:00:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 8592. [2022-01-18 11:00:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:04,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-01-18 11:00:04,995 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-01-18 11:00:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:04,995 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-01-18 11:00:04,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-01-18 11:00:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:05,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:05,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:05,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 11:00:05,005 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash 781772970, now seen corresponding path program 45 times [2022-01-18 11:00:05,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:05,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885806516] [2022-01-18 11:00:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:05,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:05,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885806516] [2022-01-18 11:00:05,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885806516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:05,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:05,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:05,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65320223] [2022-01-18 11:00:05,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:05,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:05,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:05,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:05,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:05,228 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:05,809 INFO L93 Difference]: Finished difference Result 20599 states and 58827 transitions. [2022-01-18 11:00:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:05,810 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:05,843 INFO L225 Difference]: With dead ends: 20599 [2022-01-18 11:00:05,843 INFO L226 Difference]: Without dead ends: 20599 [2022-01-18 11:00:05,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:05,848 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1190 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:05,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 3569 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20599 states. [2022-01-18 11:00:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20599 to 8548. [2022-01-18 11:00:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 8547 states have (on average 2.8184158184158186) internal successors, (24089), 8547 states have internal predecessors, (24089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 24089 transitions. [2022-01-18 11:00:06,017 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 24089 transitions. Word has length 223 [2022-01-18 11:00:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:06,017 INFO L470 AbstractCegarLoop]: Abstraction has 8548 states and 24089 transitions. [2022-01-18 11:00:06,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 24089 transitions. [2022-01-18 11:00:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:06,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:06,026 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:06,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 11:00:06,027 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:06,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:06,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444754, now seen corresponding path program 46 times [2022-01-18 11:00:06,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:06,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236975626] [2022-01-18 11:00:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:06,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:06,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:06,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236975626] [2022-01-18 11:00:06,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236975626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:06,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:06,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:06,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687195416] [2022-01-18 11:00:06,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:06,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:06,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:06,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:06,249 INFO L87 Difference]: Start difference. First operand 8548 states and 24089 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:06,802 INFO L93 Difference]: Finished difference Result 22432 states and 64293 transitions. [2022-01-18 11:00:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:06,802 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:06,839 INFO L225 Difference]: With dead ends: 22432 [2022-01-18 11:00:06,839 INFO L226 Difference]: Without dead ends: 22432 [2022-01-18 11:00:06,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:06,840 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1327 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:06,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 3173 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:06,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22432 states. [2022-01-18 11:00:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22432 to 8592. [2022-01-18 11:00:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-01-18 11:00:07,026 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-01-18 11:00:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:07,026 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-01-18 11:00:07,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-01-18 11:00:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:07,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:07,036 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:07,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 11:00:07,036 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash -416576806, now seen corresponding path program 47 times [2022-01-18 11:00:07,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:07,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695991246] [2022-01-18 11:00:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:07,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:07,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:07,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695991246] [2022-01-18 11:00:07,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695991246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:07,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:07,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:07,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874360438] [2022-01-18 11:00:07,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:07,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:07,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:07,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:07,264 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:07,804 INFO L93 Difference]: Finished difference Result 21188 states and 60621 transitions. [2022-01-18 11:00:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:07,804 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:07,837 INFO L225 Difference]: With dead ends: 21188 [2022-01-18 11:00:07,837 INFO L226 Difference]: Without dead ends: 21188 [2022-01-18 11:00:07,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:07,838 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1304 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:07,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 3111 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2022-01-18 11:00:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8596. [2022-01-18 11:00:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-01-18 11:00:08,012 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-01-18 11:00:08,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:08,012 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-01-18 11:00:08,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-01-18 11:00:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:08,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:08,022 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:08,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 11:00:08,023 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash 542924882, now seen corresponding path program 48 times [2022-01-18 11:00:08,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:08,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931988410] [2022-01-18 11:00:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:08,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:08,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931988410] [2022-01-18 11:00:08,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931988410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:08,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:08,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:08,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865868860] [2022-01-18 11:00:08,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:08,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:08,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:08,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:08,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:08,229 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:08,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:08,734 INFO L93 Difference]: Finished difference Result 20928 states and 59925 transitions. [2022-01-18 11:00:08,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:08,734 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:08,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:08,768 INFO L225 Difference]: With dead ends: 20928 [2022-01-18 11:00:08,768 INFO L226 Difference]: Without dead ends: 20928 [2022-01-18 11:00:08,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:08,769 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1249 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:08,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 3225 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2022-01-18 11:00:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 8588. [2022-01-18 11:00:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:08,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-01-18 11:00:08,941 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-01-18 11:00:08,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:08,941 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-01-18 11:00:08,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:08,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-01-18 11:00:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:08,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:08,951 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:08,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 11:00:08,951 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash 464685962, now seen corresponding path program 49 times [2022-01-18 11:00:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:08,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974305646] [2022-01-18 11:00:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:09,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:09,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974305646] [2022-01-18 11:00:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974305646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:09,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:09,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:09,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894683450] [2022-01-18 11:00:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:09,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:09,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:09,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:09,168 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:09,709 INFO L93 Difference]: Finished difference Result 21596 states and 61899 transitions. [2022-01-18 11:00:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:09,710 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:09,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:09,744 INFO L225 Difference]: With dead ends: 21596 [2022-01-18 11:00:09,744 INFO L226 Difference]: Without dead ends: 21596 [2022-01-18 11:00:09,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:09,745 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 922 mSDsluCounter, 3451 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:09,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 3762 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-01-18 11:00:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 8596. [2022-01-18 11:00:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-01-18 11:00:09,922 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-01-18 11:00:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:09,922 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-01-18 11:00:09,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-01-18 11:00:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:09,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:09,933 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:09,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 11:00:09,933 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:09,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1424187650, now seen corresponding path program 50 times [2022-01-18 11:00:09,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:09,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142782576] [2022-01-18 11:00:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:09,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:10,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:10,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142782576] [2022-01-18 11:00:10,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142782576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:10,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:10,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:10,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772319390] [2022-01-18 11:00:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:10,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:10,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:10,153 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:10,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:10,707 INFO L93 Difference]: Finished difference Result 21420 states and 61446 transitions. [2022-01-18 11:00:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:10,708 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:10,740 INFO L225 Difference]: With dead ends: 21420 [2022-01-18 11:00:10,741 INFO L226 Difference]: Without dead ends: 21420 [2022-01-18 11:00:10,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:10,742 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 878 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:10,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 3480 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21420 states. [2022-01-18 11:00:10,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21420 to 8592. [2022-01-18 11:00:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-01-18 11:00:10,913 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-01-18 11:00:10,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:10,913 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-01-18 11:00:10,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-01-18 11:00:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:10,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:10,923 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:10,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 11:00:10,924 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -271588108, now seen corresponding path program 51 times [2022-01-18 11:00:10,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:10,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681190165] [2022-01-18 11:00:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:10,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:11,135 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:11,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:11,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681190165] [2022-01-18 11:00:11,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681190165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:11,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:11,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:11,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702666853] [2022-01-18 11:00:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:11,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:11,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:11,136 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:11,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:11,736 INFO L93 Difference]: Finished difference Result 22604 states and 64826 transitions. [2022-01-18 11:00:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:11,736 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:11,776 INFO L225 Difference]: With dead ends: 22604 [2022-01-18 11:00:11,776 INFO L226 Difference]: Without dead ends: 22604 [2022-01-18 11:00:11,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:11,776 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1140 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:11,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 3453 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:11,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-01-18 11:00:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 8584. [2022-01-18 11:00:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-01-18 11:00:11,969 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-01-18 11:00:11,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:11,970 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-01-18 11:00:11,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-01-18 11:00:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:11,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:11,980 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:11,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 11:00:11,981 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:11,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash -485485282, now seen corresponding path program 52 times [2022-01-18 11:00:11,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876024299] [2022-01-18 11:00:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:11,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:12,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:12,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876024299] [2022-01-18 11:00:12,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876024299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:12,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:12,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:12,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148665984] [2022-01-18 11:00:12,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:12,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:12,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:12,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:12,180 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:12,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:12,751 INFO L93 Difference]: Finished difference Result 20692 states and 59085 transitions. [2022-01-18 11:00:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:12,751 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:12,786 INFO L225 Difference]: With dead ends: 20692 [2022-01-18 11:00:12,786 INFO L226 Difference]: Without dead ends: 20692 [2022-01-18 11:00:12,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:12,787 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 991 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:12,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 3886 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-01-18 11:00:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8628. [2022-01-18 11:00:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-01-18 11:00:12,960 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-01-18 11:00:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:12,960 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-01-18 11:00:12,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-01-18 11:00:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:12,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:12,970 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:12,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 11:00:12,971 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash 474016406, now seen corresponding path program 53 times [2022-01-18 11:00:12,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:12,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731035206] [2022-01-18 11:00:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:12,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:13,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:13,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731035206] [2022-01-18 11:00:13,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731035206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:13,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:13,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:13,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445175999] [2022-01-18 11:00:13,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:13,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:13,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:13,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:13,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:13,174 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:13,757 INFO L93 Difference]: Finished difference Result 20516 states and 58632 transitions. [2022-01-18 11:00:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:13,791 INFO L225 Difference]: With dead ends: 20516 [2022-01-18 11:00:13,791 INFO L226 Difference]: Without dead ends: 20516 [2022-01-18 11:00:13,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:13,792 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1086 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:13,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3678 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:13,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-01-18 11:00:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 8624. [2022-01-18 11:00:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-01-18 11:00:13,968 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-01-18 11:00:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:13,968 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-01-18 11:00:13,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-01-18 11:00:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:13,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:13,979 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:13,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 11:00:13,979 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:13,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:13,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1221759352, now seen corresponding path program 54 times [2022-01-18 11:00:13,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:13,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127656010] [2022-01-18 11:00:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:13,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:14,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:14,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127656010] [2022-01-18 11:00:14,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127656010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:14,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:14,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:14,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963988173] [2022-01-18 11:00:14,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:14,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:14,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:14,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:14,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:14,180 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:14,823 INFO L93 Difference]: Finished difference Result 22156 states and 63426 transitions. [2022-01-18 11:00:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:14,823 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:14,861 INFO L225 Difference]: With dead ends: 22156 [2022-01-18 11:00:14,861 INFO L226 Difference]: Without dead ends: 22156 [2022-01-18 11:00:14,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:14,862 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1112 mSDsluCounter, 3774 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:14,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 4118 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:00:14,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2022-01-18 11:00:15,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 8620. [2022-01-18 11:00:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-01-18 11:00:15,054 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-01-18 11:00:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:15,054 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-01-18 11:00:15,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-01-18 11:00:15,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:15,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:15,065 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:15,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 11:00:15,065 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:15,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:15,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1777640430, now seen corresponding path program 55 times [2022-01-18 11:00:15,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:15,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622970377] [2022-01-18 11:00:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:15,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:15,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:15,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622970377] [2022-01-18 11:00:15,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622970377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:15,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:15,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:15,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004854766] [2022-01-18 11:00:15,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:15,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:15,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:15,277 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:16,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:16,002 INFO L93 Difference]: Finished difference Result 25218 states and 71830 transitions. [2022-01-18 11:00:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:00:16,002 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:16,048 INFO L225 Difference]: With dead ends: 25218 [2022-01-18 11:00:16,048 INFO L226 Difference]: Without dead ends: 25218 [2022-01-18 11:00:16,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:00:16,049 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1517 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:16,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 4526 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:00:16,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2022-01-18 11:00:16,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 8224. [2022-01-18 11:00:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8224 states, 8223 states have (on average 2.821111516478171) internal successors, (23198), 8223 states have internal predecessors, (23198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8224 states to 8224 states and 23198 transitions. [2022-01-18 11:00:16,249 INFO L78 Accepts]: Start accepts. Automaton has 8224 states and 23198 transitions. Word has length 223 [2022-01-18 11:00:16,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:16,249 INFO L470 AbstractCegarLoop]: Abstraction has 8224 states and 23198 transitions. [2022-01-18 11:00:16,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:16,249 INFO L276 IsEmpty]: Start isEmpty. Operand 8224 states and 23198 transitions. [2022-01-18 11:00:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:16,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:16,259 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:16,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 11:00:16,259 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1997484100, now seen corresponding path program 56 times [2022-01-18 11:00:16,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:16,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306472382] [2022-01-18 11:00:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:16,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:16,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:16,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306472382] [2022-01-18 11:00:16,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306472382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:16,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:16,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:16,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419433765] [2022-01-18 11:00:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:16,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:16,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:16,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:16,475 INFO L87 Difference]: Start difference. First operand 8224 states and 23198 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:17,227 INFO L93 Difference]: Finished difference Result 21842 states and 62640 transitions. [2022-01-18 11:00:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:00:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:17,265 INFO L225 Difference]: With dead ends: 21842 [2022-01-18 11:00:17,265 INFO L226 Difference]: Without dead ends: 21842 [2022-01-18 11:00:17,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:00:17,265 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1326 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:17,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 4386 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:00:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21842 states. [2022-01-18 11:00:17,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21842 to 8300. [2022-01-18 11:00:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8300 states, 8299 states have (on average 2.8247981684540306) internal successors, (23443), 8299 states have internal predecessors, (23443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8300 states to 8300 states and 23443 transitions. [2022-01-18 11:00:17,450 INFO L78 Accepts]: Start accepts. Automaton has 8300 states and 23443 transitions. Word has length 223 [2022-01-18 11:00:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:17,450 INFO L470 AbstractCegarLoop]: Abstraction has 8300 states and 23443 transitions. [2022-01-18 11:00:17,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:17,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8300 states and 23443 transitions. [2022-01-18 11:00:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:17,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:17,460 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:17,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 11:00:17,460 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash 186521022, now seen corresponding path program 57 times [2022-01-18 11:00:17,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:17,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359159701] [2022-01-18 11:00:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:17,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:17,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:17,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359159701] [2022-01-18 11:00:17,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359159701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:17,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:17,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:17,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736273915] [2022-01-18 11:00:17,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:17,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:17,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:17,671 INFO L87 Difference]: Start difference. First operand 8300 states and 23443 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:18,224 INFO L93 Difference]: Finished difference Result 17140 states and 49239 transitions. [2022-01-18 11:00:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:18,253 INFO L225 Difference]: With dead ends: 17140 [2022-01-18 11:00:18,253 INFO L226 Difference]: Without dead ends: 17140 [2022-01-18 11:00:18,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:18,255 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1071 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:18,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 3579 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17140 states. [2022-01-18 11:00:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17140 to 8308. [2022-01-18 11:00:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8308 states, 8307 states have (on average 2.826170699410136) internal successors, (23477), 8307 states have internal predecessors, (23477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8308 states to 8308 states and 23477 transitions. [2022-01-18 11:00:18,417 INFO L78 Accepts]: Start accepts. Automaton has 8308 states and 23477 transitions. Word has length 223 [2022-01-18 11:00:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:18,417 INFO L470 AbstractCegarLoop]: Abstraction has 8308 states and 23477 transitions. [2022-01-18 11:00:18,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 8308 states and 23477 transitions. [2022-01-18 11:00:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:18,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:18,428 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:18,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 11:00:18,428 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1146022710, now seen corresponding path program 58 times [2022-01-18 11:00:18,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962572822] [2022-01-18 11:00:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:18,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:18,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:18,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962572822] [2022-01-18 11:00:18,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962572822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:18,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:18,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:18,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134314757] [2022-01-18 11:00:18,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:18,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:18,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:18,653 INFO L87 Difference]: Start difference. First operand 8308 states and 23477 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:19,216 INFO L93 Difference]: Finished difference Result 17015 states and 48924 transitions. [2022-01-18 11:00:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:19,217 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:19,245 INFO L225 Difference]: With dead ends: 17015 [2022-01-18 11:00:19,245 INFO L226 Difference]: Without dead ends: 17015 [2022-01-18 11:00:19,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:19,247 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1203 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:19,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 3776 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:19,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-01-18 11:00:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 8304. [2022-01-18 11:00:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8304 states, 8303 states have (on average 2.825243887751415) internal successors, (23458), 8303 states have internal predecessors, (23458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 23458 transitions. [2022-01-18 11:00:19,397 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 23458 transitions. Word has length 223 [2022-01-18 11:00:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:19,397 INFO L470 AbstractCegarLoop]: Abstraction has 8304 states and 23458 transitions. [2022-01-18 11:00:19,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 23458 transitions. [2022-01-18 11:00:19,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:19,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:19,407 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:19,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 11:00:19,408 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash -549753048, now seen corresponding path program 59 times [2022-01-18 11:00:19,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:19,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034659083] [2022-01-18 11:00:19,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:19,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:19,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:19,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034659083] [2022-01-18 11:00:19,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034659083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:19,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:19,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:19,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441738188] [2022-01-18 11:00:19,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:19,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:19,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:19,615 INFO L87 Difference]: Start difference. First operand 8304 states and 23458 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:20,264 INFO L93 Difference]: Finished difference Result 18643 states and 53681 transitions. [2022-01-18 11:00:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:20,294 INFO L225 Difference]: With dead ends: 18643 [2022-01-18 11:00:20,294 INFO L226 Difference]: Without dead ends: 18643 [2022-01-18 11:00:20,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:20,294 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1061 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:20,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 4059 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:00:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18643 states. [2022-01-18 11:00:20,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18643 to 8264. [2022-01-18 11:00:20,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8263 states have (on average 2.820767275807818) internal successors, (23308), 8263 states have internal predecessors, (23308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 23308 transitions. [2022-01-18 11:00:20,451 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 23308 transitions. Word has length 223 [2022-01-18 11:00:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:20,451 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 23308 transitions. [2022-01-18 11:00:20,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 23308 transitions. [2022-01-18 11:00:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:20,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:20,461 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:20,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 11:00:20,461 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1356097652, now seen corresponding path program 60 times [2022-01-18 11:00:20,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:20,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014441935] [2022-01-18 11:00:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:20,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:20,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:20,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014441935] [2022-01-18 11:00:20,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014441935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:20,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:20,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:20,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815973858] [2022-01-18 11:00:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:20,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:20,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:20,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:20,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:20,699 INFO L87 Difference]: Start difference. First operand 8264 states and 23308 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:21,254 INFO L93 Difference]: Finished difference Result 17336 states and 49761 transitions. [2022-01-18 11:00:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:21,283 INFO L225 Difference]: With dead ends: 17336 [2022-01-18 11:00:21,283 INFO L226 Difference]: Without dead ends: 17336 [2022-01-18 11:00:21,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:21,284 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1096 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:21,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3077 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17336 states. [2022-01-18 11:00:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17336 to 8272. [2022-01-18 11:00:21,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-01-18 11:00:21,438 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-01-18 11:00:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:21,438 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-01-18 11:00:21,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-01-18 11:00:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:21,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:21,447 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:21,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 11:00:21,448 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:21,448 INFO L85 PathProgramCache]: Analyzing trace with hash 971848084, now seen corresponding path program 61 times [2022-01-18 11:00:21,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:21,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087124315] [2022-01-18 11:00:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:21,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:21,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:21,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087124315] [2022-01-18 11:00:21,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087124315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:21,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:21,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:21,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281451006] [2022-01-18 11:00:21,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:21,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:21,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:21,658 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:22,138 INFO L93 Difference]: Finished difference Result 16036 states and 45923 transitions. [2022-01-18 11:00:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:22,138 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:22,164 INFO L225 Difference]: With dead ends: 16036 [2022-01-18 11:00:22,164 INFO L226 Difference]: Without dead ends: 16036 [2022-01-18 11:00:22,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:22,165 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 812 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:22,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 2978 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-01-18 11:00:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 8276. [2022-01-18 11:00:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-01-18 11:00:22,314 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-01-18 11:00:22,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:22,314 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-01-18 11:00:22,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:22,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-01-18 11:00:22,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:22,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:22,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:22,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 11:00:22,324 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:22,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1931349772, now seen corresponding path program 62 times [2022-01-18 11:00:22,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:22,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594414098] [2022-01-18 11:00:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:22,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:22,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:22,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594414098] [2022-01-18 11:00:22,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594414098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:22,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:22,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:22,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327411623] [2022-01-18 11:00:22,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:22,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:22,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:22,546 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:23,036 INFO L93 Difference]: Finished difference Result 15776 states and 45227 transitions. [2022-01-18 11:00:23,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:23,037 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:23,062 INFO L225 Difference]: With dead ends: 15776 [2022-01-18 11:00:23,062 INFO L226 Difference]: Without dead ends: 15776 [2022-01-18 11:00:23,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:23,063 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 986 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:23,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 3340 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-01-18 11:00:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 8268. [2022-01-18 11:00:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.820733034958268) internal successors, (23319), 8267 states have internal predecessors, (23319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23319 transitions. [2022-01-18 11:00:23,223 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23319 transitions. Word has length 223 [2022-01-18 11:00:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:23,223 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23319 transitions. [2022-01-18 11:00:23,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23319 transitions. [2022-01-18 11:00:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:23,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:23,233 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:23,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 11:00:23,233 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1853110852, now seen corresponding path program 63 times [2022-01-18 11:00:23,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:23,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385792414] [2022-01-18 11:00:23,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:23,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:23,441 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:23,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:23,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385792414] [2022-01-18 11:00:23,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385792414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:23,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:23,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:23,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748636002] [2022-01-18 11:00:23,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:23,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:23,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:23,443 INFO L87 Difference]: Start difference. First operand 8268 states and 23319 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:23,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:23,993 INFO L93 Difference]: Finished difference Result 16444 states and 47201 transitions. [2022-01-18 11:00:23,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:23,994 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:23,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:24,020 INFO L225 Difference]: With dead ends: 16444 [2022-01-18 11:00:24,021 INFO L226 Difference]: Without dead ends: 16444 [2022-01-18 11:00:24,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:24,021 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1160 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:24,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3551 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-01-18 11:00:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 8276. [2022-01-18 11:00:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:24,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-01-18 11:00:24,172 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-01-18 11:00:24,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:24,172 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-01-18 11:00:24,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-01-18 11:00:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:24,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:24,182 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:24,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 11:00:24,182 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1482354756, now seen corresponding path program 64 times [2022-01-18 11:00:24,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:24,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365679474] [2022-01-18 11:00:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:24,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:24,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:24,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365679474] [2022-01-18 11:00:24,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365679474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:24,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:24,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:24,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100052425] [2022-01-18 11:00:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:24,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:24,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:24,395 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:24,897 INFO L93 Difference]: Finished difference Result 16268 states and 46748 transitions. [2022-01-18 11:00:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:24,897 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:24,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:24,926 INFO L225 Difference]: With dead ends: 16268 [2022-01-18 11:00:24,926 INFO L226 Difference]: Without dead ends: 16268 [2022-01-18 11:00:24,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:24,927 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 946 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:24,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 3343 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-01-18 11:00:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 8272. [2022-01-18 11:00:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-01-18 11:00:25,073 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-01-18 11:00:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:25,074 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-01-18 11:00:25,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-01-18 11:00:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:25,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:25,083 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:25,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 11:00:25,084 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1116836782, now seen corresponding path program 65 times [2022-01-18 11:00:25,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:25,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051791821] [2022-01-18 11:00:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:25,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:25,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:25,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051791821] [2022-01-18 11:00:25,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051791821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:25,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:25,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:25,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160331127] [2022-01-18 11:00:25,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:25,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:25,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:25,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:25,304 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:25,865 INFO L93 Difference]: Finished difference Result 17452 states and 50128 transitions. [2022-01-18 11:00:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:25,866 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:25,894 INFO L225 Difference]: With dead ends: 17452 [2022-01-18 11:00:25,894 INFO L226 Difference]: Without dead ends: 17452 [2022-01-18 11:00:25,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:25,895 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1391 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:25,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 3213 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2022-01-18 11:00:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 8228. [2022-01-18 11:00:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8228 states, 8227 states have (on average 2.8210769417770756) internal successors, (23209), 8227 states have internal predecessors, (23209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:26,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 23209 transitions. [2022-01-18 11:00:26,088 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 23209 transitions. Word has length 223 [2022-01-18 11:00:26,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:26,089 INFO L470 AbstractCegarLoop]: Abstraction has 8228 states and 23209 transitions. [2022-01-18 11:00:26,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:26,089 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 23209 transitions. [2022-01-18 11:00:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:26,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:26,098 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:26,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 11:00:26,098 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:26,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash -70816108, now seen corresponding path program 66 times [2022-01-18 11:00:26,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188549929] [2022-01-18 11:00:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:26,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:26,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:26,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188549929] [2022-01-18 11:00:26,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188549929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:26,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:26,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:26,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363950113] [2022-01-18 11:00:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:26,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:26,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:26,293 INFO L87 Difference]: Start difference. First operand 8228 states and 23209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:26,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:26,970 INFO L93 Difference]: Finished difference Result 20532 states and 58718 transitions. [2022-01-18 11:00:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:00:26,970 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:27,004 INFO L225 Difference]: With dead ends: 20532 [2022-01-18 11:00:27,004 INFO L226 Difference]: Without dead ends: 20532 [2022-01-18 11:00:27,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:00:27,005 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1166 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:27,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 3775 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2022-01-18 11:00:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 8268. [2022-01-18 11:00:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.825571549534293) internal successors, (23359), 8267 states have internal predecessors, (23359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23359 transitions. [2022-01-18 11:00:27,176 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23359 transitions. Word has length 223 [2022-01-18 11:00:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:27,176 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23359 transitions. [2022-01-18 11:00:27,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23359 transitions. [2022-01-18 11:00:27,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:27,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:27,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:27,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 11:00:27,186 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2113189014, now seen corresponding path program 67 times [2022-01-18 11:00:27,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:27,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851841301] [2022-01-18 11:00:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:27,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:27,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:27,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851841301] [2022-01-18 11:00:27,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851841301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:27,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:27,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:27,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799243597] [2022-01-18 11:00:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:27,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:27,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:27,371 INFO L87 Difference]: Start difference. First operand 8268 states and 23359 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:27,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:27,935 INFO L93 Difference]: Finished difference Result 15295 states and 43672 transitions. [2022-01-18 11:00:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:27,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:27,959 INFO L225 Difference]: With dead ends: 15295 [2022-01-18 11:00:27,959 INFO L226 Difference]: Without dead ends: 15295 [2022-01-18 11:00:27,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:27,960 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1330 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:27,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 3315 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:27,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-01-18 11:00:28,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 8276. [2022-01-18 11:00:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.826948640483384) internal successors, (23393), 8275 states have internal predecessors, (23393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23393 transitions. [2022-01-18 11:00:28,113 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23393 transitions. Word has length 223 [2022-01-18 11:00:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:28,113 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23393 transitions. [2022-01-18 11:00:28,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23393 transitions. [2022-01-18 11:00:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:28,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:28,125 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:28,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 11:00:28,125 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1222276594, now seen corresponding path program 68 times [2022-01-18 11:00:28,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:28,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626007412] [2022-01-18 11:00:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:28,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:28,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:28,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626007412] [2022-01-18 11:00:28,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626007412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:28,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:28,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:28,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972750205] [2022-01-18 11:00:28,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:28,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:28,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:28,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:28,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:28,312 INFO L87 Difference]: Start difference. First operand 8276 states and 23393 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:28,894 INFO L93 Difference]: Finished difference Result 15170 states and 43357 transitions. [2022-01-18 11:00:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:28,895 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:28,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:28,919 INFO L225 Difference]: With dead ends: 15170 [2022-01-18 11:00:28,919 INFO L226 Difference]: Without dead ends: 15170 [2022-01-18 11:00:28,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:00:28,920 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1007 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:28,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 3868 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2022-01-18 11:00:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 8272. [2022-01-18 11:00:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.8260186192721557) internal successors, (23374), 8271 states have internal predecessors, (23374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23374 transitions. [2022-01-18 11:00:29,063 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23374 transitions. Word has length 223 [2022-01-18 11:00:29,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:29,063 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23374 transitions. [2022-01-18 11:00:29,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:29,063 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23374 transitions. [2022-01-18 11:00:29,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:29,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:29,073 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:29,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 11:00:29,073 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1376914944, now seen corresponding path program 69 times [2022-01-18 11:00:29,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:29,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92221501] [2022-01-18 11:00:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:29,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:29,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:29,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92221501] [2022-01-18 11:00:29,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92221501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:29,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:29,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:29,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434567369] [2022-01-18 11:00:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:29,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:29,287 INFO L87 Difference]: Start difference. First operand 8272 states and 23374 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:29,927 INFO L93 Difference]: Finished difference Result 16810 states and 48151 transitions. [2022-01-18 11:00:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:29,954 INFO L225 Difference]: With dead ends: 16810 [2022-01-18 11:00:29,954 INFO L226 Difference]: Without dead ends: 16810 [2022-01-18 11:00:29,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:00:29,955 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 937 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:29,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 3992 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:00:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2022-01-18 11:00:30,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 8232. [2022-01-18 11:00:30,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8232 states, 8231 states have (on average 2.821528368363504) internal successors, (23224), 8231 states have internal predecessors, (23224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 23224 transitions. [2022-01-18 11:00:30,103 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 23224 transitions. Word has length 223 [2022-01-18 11:00:30,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:30,103 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 23224 transitions. [2022-01-18 11:00:30,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 23224 transitions. [2022-01-18 11:00:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-18 11:00:30,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:30,113 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:30,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 11:00:30,113 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash -556140130, now seen corresponding path program 70 times [2022-01-18 11:00:30,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:30,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540340627] [2022-01-18 11:00:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:30,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:30,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:30,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540340627] [2022-01-18 11:00:30,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540340627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:30,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:30,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 11:00:30,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754931692] [2022-01-18 11:00:30,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:30,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:00:30,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:00:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:30,299 INFO L87 Difference]: Start difference. First operand 8232 states and 23224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:31,066 INFO L93 Difference]: Finished difference Result 21876 states and 62326 transitions. [2022-01-18 11:00:31,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:00:31,066 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-01-18 11:00:31,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:31,104 INFO L225 Difference]: With dead ends: 21876 [2022-01-18 11:00:31,104 INFO L226 Difference]: Without dead ends: 21876 [2022-01-18 11:00:31,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:00:31,105 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1725 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:31,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 4578 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:00:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21876 states. [2022-01-18 11:00:31,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21876 to 8336. [2022-01-18 11:00:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 8335 states have (on average 2.8220755848830232) internal successors, (23522), 8335 states have internal predecessors, (23522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 23522 transitions. [2022-01-18 11:00:31,294 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 23522 transitions. Word has length 223 [2022-01-18 11:00:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:31,294 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 23522 transitions. [2022-01-18 11:00:31,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 23522 transitions. [2022-01-18 11:00:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:31,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:31,305 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:31,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 11:00:31,305 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:31,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:31,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1960384399, now seen corresponding path program 1 times [2022-01-18 11:00:31,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:31,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536839492] [2022-01-18 11:00:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:31,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:31,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536839492] [2022-01-18 11:00:31,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536839492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:31,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:31,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:31,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569203178] [2022-01-18 11:00:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:31,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:31,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:31,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:31,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:31,400 INFO L87 Difference]: Start difference. First operand 8336 states and 23522 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:31,651 INFO L93 Difference]: Finished difference Result 10171 states and 28081 transitions. [2022-01-18 11:00:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:00:31,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:31,666 INFO L225 Difference]: With dead ends: 10171 [2022-01-18 11:00:31,666 INFO L226 Difference]: Without dead ends: 10024 [2022-01-18 11:00:31,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:00:31,666 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 321 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:31,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 2342 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-01-18 11:00:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9870. [2022-01-18 11:00:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9870 states, 9869 states have (on average 2.7776877089877394) internal successors, (27413), 9869 states have internal predecessors, (27413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 27413 transitions. [2022-01-18 11:00:31,793 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 27413 transitions. Word has length 227 [2022-01-18 11:00:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:31,793 INFO L470 AbstractCegarLoop]: Abstraction has 9870 states and 27413 transitions. [2022-01-18 11:00:31,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 27413 transitions. [2022-01-18 11:00:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:31,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:31,806 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:31,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 11:00:31,806 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash 871663653, now seen corresponding path program 2 times [2022-01-18 11:00:31,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507489932] [2022-01-18 11:00:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:31,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:31,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:31,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507489932] [2022-01-18 11:00:31,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507489932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:31,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:31,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:31,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117617012] [2022-01-18 11:00:31,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:31,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:31,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:31,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:31,911 INFO L87 Difference]: Start difference. First operand 9870 states and 27413 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:32,210 INFO L93 Difference]: Finished difference Result 10195 states and 28097 transitions. [2022-01-18 11:00:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:32,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:32,226 INFO L225 Difference]: With dead ends: 10195 [2022-01-18 11:00:32,226 INFO L226 Difference]: Without dead ends: 9768 [2022-01-18 11:00:32,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:00:32,226 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 304 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:32,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2946 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-01-18 11:00:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9614. [2022-01-18 11:00:32,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9614 states, 9613 states have (on average 2.778425049412254) internal successors, (26709), 9613 states have internal predecessors, (26709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 26709 transitions. [2022-01-18 11:00:32,372 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 26709 transitions. Word has length 227 [2022-01-18 11:00:32,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:32,372 INFO L470 AbstractCegarLoop]: Abstraction has 9614 states and 26709 transitions. [2022-01-18 11:00:32,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,372 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 26709 transitions. [2022-01-18 11:00:32,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:32,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:32,384 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:32,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 11:00:32,384 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:32,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:32,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1010368307, now seen corresponding path program 3 times [2022-01-18 11:00:32,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:32,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115330116] [2022-01-18 11:00:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:32,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:32,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:32,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115330116] [2022-01-18 11:00:32,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115330116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:32,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:32,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:32,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247229212] [2022-01-18 11:00:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:32,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:32,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:32,478 INFO L87 Difference]: Start difference. First operand 9614 states and 26709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:32,715 INFO L93 Difference]: Finished difference Result 9885 states and 27294 transitions. [2022-01-18 11:00:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:32,730 INFO L225 Difference]: With dead ends: 9885 [2022-01-18 11:00:32,730 INFO L226 Difference]: Without dead ends: 9667 [2022-01-18 11:00:32,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:32,730 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 234 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:32,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2523 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:32,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-01-18 11:00:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9582. [2022-01-18 11:00:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 2.7785199874752116) internal successors, (26621), 9581 states have internal predecessors, (26621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 26621 transitions. [2022-01-18 11:00:32,844 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 26621 transitions. Word has length 227 [2022-01-18 11:00:32,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:32,844 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 26621 transitions. [2022-01-18 11:00:32,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 26621 transitions. [2022-01-18 11:00:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:32,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:32,855 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:32,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 11:00:32,855 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:32,856 INFO L85 PathProgramCache]: Analyzing trace with hash -366274121, now seen corresponding path program 4 times [2022-01-18 11:00:32,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:32,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067952229] [2022-01-18 11:00:32,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:32,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:32,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:32,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067952229] [2022-01-18 11:00:32,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067952229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:32,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:32,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:32,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949719505] [2022-01-18 11:00:32,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:32,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:32,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:32,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:32,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:32,963 INFO L87 Difference]: Start difference. First operand 9582 states and 26621 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:33,193 INFO L93 Difference]: Finished difference Result 9868 states and 27241 transitions. [2022-01-18 11:00:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:00:33,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:33,207 INFO L225 Difference]: With dead ends: 9868 [2022-01-18 11:00:33,207 INFO L226 Difference]: Without dead ends: 9635 [2022-01-18 11:00:33,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:33,207 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 222 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:33,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2693 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-01-18 11:00:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9550. [2022-01-18 11:00:33,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 2.778615561838936) internal successors, (26533), 9549 states have internal predecessors, (26533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 26533 transitions. [2022-01-18 11:00:33,328 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 26533 transitions. Word has length 227 [2022-01-18 11:00:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:33,328 INFO L470 AbstractCegarLoop]: Abstraction has 9550 states and 26533 transitions. [2022-01-18 11:00:33,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 26533 transitions. [2022-01-18 11:00:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:33,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:33,340 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:33,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 11:00:33,340 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:33,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:33,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1574838221, now seen corresponding path program 5 times [2022-01-18 11:00:33,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:33,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298136567] [2022-01-18 11:00:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:33,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:33,449 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:33,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:33,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298136567] [2022-01-18 11:00:33,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298136567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:33,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:33,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:33,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665426589] [2022-01-18 11:00:33,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:33,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:33,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:33,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:33,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:33,450 INFO L87 Difference]: Start difference. First operand 9550 states and 26533 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:33,651 INFO L93 Difference]: Finished difference Result 9701 states and 26838 transitions. [2022-01-18 11:00:33,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:33,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:33,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:33,665 INFO L225 Difference]: With dead ends: 9701 [2022-01-18 11:00:33,665 INFO L226 Difference]: Without dead ends: 9453 [2022-01-18 11:00:33,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:33,666 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 249 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:33,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2825 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:33,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2022-01-18 11:00:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 9368. [2022-01-18 11:00:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 9367 states have (on average 2.7838155225792676) internal successors, (26076), 9367 states have internal predecessors, (26076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 26076 transitions. [2022-01-18 11:00:33,782 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 26076 transitions. Word has length 227 [2022-01-18 11:00:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:33,782 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 26076 transitions. [2022-01-18 11:00:33,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,782 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 26076 transitions. [2022-01-18 11:00:33,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:33,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:33,793 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:33,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 11:00:33,793 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:33,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:33,794 INFO L85 PathProgramCache]: Analyzing trace with hash 802199471, now seen corresponding path program 1 times [2022-01-18 11:00:33,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:33,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057222837] [2022-01-18 11:00:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:33,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:33,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:33,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057222837] [2022-01-18 11:00:33,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057222837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:33,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:33,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:00:33,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024615815] [2022-01-18 11:00:33,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:33,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:00:33,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:00:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:00:33,822 INFO L87 Difference]: Start difference. First operand 9368 states and 26076 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:33,898 INFO L93 Difference]: Finished difference Result 14651 states and 40779 transitions. [2022-01-18 11:00:33,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:00:33,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:33,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:33,924 INFO L225 Difference]: With dead ends: 14651 [2022-01-18 11:00:33,924 INFO L226 Difference]: Without dead ends: 14651 [2022-01-18 11:00:33,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:00:33,924 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 226 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:33,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1177 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:00:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14651 states. [2022-01-18 11:00:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14651 to 11546. [2022-01-18 11:00:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11546 states, 11545 states have (on average 2.7801645734084017) internal successors, (32097), 11545 states have internal predecessors, (32097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11546 states to 11546 states and 32097 transitions. [2022-01-18 11:00:34,096 INFO L78 Accepts]: Start accepts. Automaton has 11546 states and 32097 transitions. Word has length 227 [2022-01-18 11:00:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:34,096 INFO L470 AbstractCegarLoop]: Abstraction has 11546 states and 32097 transitions. [2022-01-18 11:00:34,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11546 states and 32097 transitions. [2022-01-18 11:00:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:34,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:34,109 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:34,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 11:00:34,110 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1326718921, now seen corresponding path program 6 times [2022-01-18 11:00:34,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:34,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588981379] [2022-01-18 11:00:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:34,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:34,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588981379] [2022-01-18 11:00:34,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588981379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:34,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:34,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:34,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401458518] [2022-01-18 11:00:34,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:34,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:34,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:34,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:34,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:34,208 INFO L87 Difference]: Start difference. First operand 11546 states and 32097 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:34,460 INFO L93 Difference]: Finished difference Result 12578 states and 34703 transitions. [2022-01-18 11:00:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:34,461 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:34,517 INFO L225 Difference]: With dead ends: 12578 [2022-01-18 11:00:34,517 INFO L226 Difference]: Without dead ends: 12431 [2022-01-18 11:00:34,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:34,518 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 230 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:34,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2729 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12431 states. [2022-01-18 11:00:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12431 to 12005. [2022-01-18 11:00:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12005 states, 12004 states have (on average 2.7716594468510496) internal successors, (33271), 12004 states have internal predecessors, (33271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12005 states to 12005 states and 33271 transitions. [2022-01-18 11:00:34,658 INFO L78 Accepts]: Start accepts. Automaton has 12005 states and 33271 transitions. Word has length 227 [2022-01-18 11:00:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:34,658 INFO L470 AbstractCegarLoop]: Abstraction has 12005 states and 33271 transitions. [2022-01-18 11:00:34,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 12005 states and 33271 transitions. [2022-01-18 11:00:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:34,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:34,673 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:34,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 11:00:34,673 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:34,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1879527629, now seen corresponding path program 7 times [2022-01-18 11:00:34,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:34,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638320858] [2022-01-18 11:00:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:34,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:34,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:34,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638320858] [2022-01-18 11:00:34,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638320858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:34,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:34,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:34,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803288880] [2022-01-18 11:00:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:34,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:34,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:34,787 INFO L87 Difference]: Start difference. First operand 12005 states and 33271 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:35,118 INFO L93 Difference]: Finished difference Result 12602 states and 34719 transitions. [2022-01-18 11:00:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:00:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:35,136 INFO L225 Difference]: With dead ends: 12602 [2022-01-18 11:00:35,136 INFO L226 Difference]: Without dead ends: 12175 [2022-01-18 11:00:35,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:00:35,137 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 241 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:35,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2473 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-01-18 11:00:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11749. [2022-01-18 11:00:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 11748 states have (on average 2.772131426625809) internal successors, (32567), 11748 states have internal predecessors, (32567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 32567 transitions. [2022-01-18 11:00:35,287 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 32567 transitions. Word has length 227 [2022-01-18 11:00:35,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:35,288 INFO L470 AbstractCegarLoop]: Abstraction has 11749 states and 32567 transitions. [2022-01-18 11:00:35,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 32567 transitions. [2022-01-18 11:00:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:35,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:35,302 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:35,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 11:00:35,302 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:35,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2504331, now seen corresponding path program 8 times [2022-01-18 11:00:35,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:35,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692265390] [2022-01-18 11:00:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:35,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:35,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:35,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692265390] [2022-01-18 11:00:35,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692265390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:35,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:35,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:35,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336724586] [2022-01-18 11:00:35,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:35,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:35,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:35,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:35,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:35,413 INFO L87 Difference]: Start difference. First operand 11749 states and 32567 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:35,650 INFO L93 Difference]: Finished difference Result 12292 states and 33916 transitions. [2022-01-18 11:00:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:00:35,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:35,668 INFO L225 Difference]: With dead ends: 12292 [2022-01-18 11:00:35,668 INFO L226 Difference]: Without dead ends: 12074 [2022-01-18 11:00:35,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:00:35,668 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 155 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:35,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2440 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-01-18 11:00:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 11717. [2022-01-18 11:00:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11717 states, 11716 states have (on average 2.7721918743598497) internal successors, (32479), 11716 states have internal predecessors, (32479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 32479 transitions. [2022-01-18 11:00:35,823 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 32479 transitions. Word has length 227 [2022-01-18 11:00:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:35,824 INFO L470 AbstractCegarLoop]: Abstraction has 11717 states and 32479 transitions. [2022-01-18 11:00:35,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 32479 transitions. [2022-01-18 11:00:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:35,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:35,838 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:35,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 11:00:35,838 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:35,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:35,838 INFO L85 PathProgramCache]: Analyzing trace with hash -818213115, now seen corresponding path program 9 times [2022-01-18 11:00:35,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:35,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342747076] [2022-01-18 11:00:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:35,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:35,955 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:35,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:35,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342747076] [2022-01-18 11:00:35,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342747076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:35,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:35,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:35,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021811423] [2022-01-18 11:00:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:35,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:35,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:35,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:35,956 INFO L87 Difference]: Start difference. First operand 11717 states and 32479 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:36,166 INFO L93 Difference]: Finished difference Result 12140 states and 33548 transitions. [2022-01-18 11:00:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:36,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:36,185 INFO L225 Difference]: With dead ends: 12140 [2022-01-18 11:00:36,185 INFO L226 Difference]: Without dead ends: 11907 [2022-01-18 11:00:36,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:36,185 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 138 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:36,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 2620 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:36,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2022-01-18 11:00:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11550. [2022-01-18 11:00:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 11549 states have (on average 2.779807775564984) internal successors, (32104), 11549 states have internal predecessors, (32104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 32104 transitions. [2022-01-18 11:00:36,330 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 32104 transitions. Word has length 227 [2022-01-18 11:00:36,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:36,331 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 32104 transitions. [2022-01-18 11:00:36,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 32104 transitions. [2022-01-18 11:00:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:36,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:36,344 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:36,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 11:00:36,345 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1387001287, now seen corresponding path program 10 times [2022-01-18 11:00:36,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:36,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630720658] [2022-01-18 11:00:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:36,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:36,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:36,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630720658] [2022-01-18 11:00:36,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630720658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:36,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:36,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:36,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281568265] [2022-01-18 11:00:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:36,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:36,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:36,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:36,437 INFO L87 Difference]: Start difference. First operand 11550 states and 32104 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:36,658 INFO L93 Difference]: Finished difference Result 12379 states and 34183 transitions. [2022-01-18 11:00:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:36,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:36,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:36,677 INFO L225 Difference]: With dead ends: 12379 [2022-01-18 11:00:36,677 INFO L226 Difference]: Without dead ends: 12232 [2022-01-18 11:00:36,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:36,678 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 187 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:36,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 2435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:36,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-01-18 11:00:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11962. [2022-01-18 11:00:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 11961 states have (on average 2.7719254242956275) internal successors, (33155), 11961 states have internal predecessors, (33155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 33155 transitions. [2022-01-18 11:00:36,864 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33155 transitions. Word has length 227 [2022-01-18 11:00:36,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:36,864 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 33155 transitions. [2022-01-18 11:00:36,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33155 transitions. [2022-01-18 11:00:36,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:36,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:36,879 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:36,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 11:00:36,879 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1819245263, now seen corresponding path program 11 times [2022-01-18 11:00:36,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:36,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077448168] [2022-01-18 11:00:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:36,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:36,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:36,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077448168] [2022-01-18 11:00:36,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077448168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:36,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:36,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:36,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21128301] [2022-01-18 11:00:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:36,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:36,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:36,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:36,984 INFO L87 Difference]: Start difference. First operand 11962 states and 33155 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:37,226 INFO L93 Difference]: Finished difference Result 12403 states and 34199 transitions. [2022-01-18 11:00:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:37,226 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:37,245 INFO L225 Difference]: With dead ends: 12403 [2022-01-18 11:00:37,245 INFO L226 Difference]: Without dead ends: 11976 [2022-01-18 11:00:37,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:37,245 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 189 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:37,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 2191 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2022-01-18 11:00:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 11706. [2022-01-18 11:00:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11706 states, 11705 states have (on average 2.772404955147373) internal successors, (32451), 11705 states have internal predecessors, (32451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 32451 transitions. [2022-01-18 11:00:37,390 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 32451 transitions. Word has length 227 [2022-01-18 11:00:37,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:37,390 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 32451 transitions. [2022-01-18 11:00:37,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,390 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 32451 transitions. [2022-01-18 11:00:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:37,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:37,404 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:37,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 11:00:37,404 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash -62786697, now seen corresponding path program 12 times [2022-01-18 11:00:37,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:37,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246741307] [2022-01-18 11:00:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:37,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:37,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:37,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246741307] [2022-01-18 11:00:37,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246741307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:37,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:37,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:37,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739923749] [2022-01-18 11:00:37,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:37,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:37,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:37,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:37,500 INFO L87 Difference]: Start difference. First operand 11706 states and 32451 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:37,684 INFO L93 Difference]: Finished difference Result 11973 states and 33116 transitions. [2022-01-18 11:00:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:00:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:37,703 INFO L225 Difference]: With dead ends: 11973 [2022-01-18 11:00:37,703 INFO L226 Difference]: Without dead ends: 11755 [2022-01-18 11:00:37,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:00:37,703 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:37,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2345 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-01-18 11:00:37,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11554. [2022-01-18 11:00:37,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11554 states, 11553 states have (on average 2.779451224790098) internal successors, (32111), 11553 states have internal predecessors, (32111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 32111 transitions. [2022-01-18 11:00:37,857 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 32111 transitions. Word has length 227 [2022-01-18 11:00:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:37,857 INFO L470 AbstractCegarLoop]: Abstraction has 11554 states and 32111 transitions. [2022-01-18 11:00:37,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 32111 transitions. [2022-01-18 11:00:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:37,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:37,872 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:37,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 11:00:37,872 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1786980807, now seen corresponding path program 13 times [2022-01-18 11:00:37,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:37,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850378841] [2022-01-18 11:00:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:37,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:37,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:37,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850378841] [2022-01-18 11:00:37,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850378841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:37,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:37,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:37,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131836883] [2022-01-18 11:00:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:37,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:37,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:37,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:37,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:37,966 INFO L87 Difference]: Start difference. First operand 11554 states and 32111 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:38,180 INFO L93 Difference]: Finished difference Result 12325 states and 33970 transitions. [2022-01-18 11:00:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:38,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:38,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:38,199 INFO L225 Difference]: With dead ends: 12325 [2022-01-18 11:00:38,199 INFO L226 Difference]: Without dead ends: 12178 [2022-01-18 11:00:38,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:38,199 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 190 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:38,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 2128 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:38,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-01-18 11:00:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 11947. [2022-01-18 11:00:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11947 states, 11946 states have (on average 2.772141302528043) internal successors, (33116), 11946 states have internal predecessors, (33116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11947 states to 11947 states and 33116 transitions. [2022-01-18 11:00:38,361 INFO L78 Accepts]: Start accepts. Automaton has 11947 states and 33116 transitions. Word has length 227 [2022-01-18 11:00:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:38,361 INFO L470 AbstractCegarLoop]: Abstraction has 11947 states and 33116 transitions. [2022-01-18 11:00:38,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 11947 states and 33116 transitions. [2022-01-18 11:00:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:38,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:38,376 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:38,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 11:00:38,376 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 698260061, now seen corresponding path program 14 times [2022-01-18 11:00:38,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:38,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636348163] [2022-01-18 11:00:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:38,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:38,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:38,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636348163] [2022-01-18 11:00:38,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636348163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:38,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:38,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:38,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417269683] [2022-01-18 11:00:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:38,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:38,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:38,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:38,468 INFO L87 Difference]: Start difference. First operand 11947 states and 33116 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:38,700 INFO L93 Difference]: Finished difference Result 12175 states and 33607 transitions. [2022-01-18 11:00:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:38,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:38,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:38,719 INFO L225 Difference]: With dead ends: 12175 [2022-01-18 11:00:38,719 INFO L226 Difference]: Without dead ends: 11748 [2022-01-18 11:00:38,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:38,720 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 159 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:38,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 2538 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-01-18 11:00:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11586. [2022-01-18 11:00:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11585 states have (on average 2.776607682347864) internal successors, (32167), 11585 states have internal predecessors, (32167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 32167 transitions. [2022-01-18 11:00:38,939 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 32167 transitions. Word has length 227 [2022-01-18 11:00:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:38,939 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 32167 transitions. [2022-01-18 11:00:38,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 32167 transitions. [2022-01-18 11:00:38,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:38,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:38,954 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:38,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 11:00:38,954 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash 168555327, now seen corresponding path program 15 times [2022-01-18 11:00:38,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:38,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654026060] [2022-01-18 11:00:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:38,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:39,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654026060] [2022-01-18 11:00:39,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654026060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:39,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:39,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:39,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227377900] [2022-01-18 11:00:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:39,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:39,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:39,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:39,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:39,047 INFO L87 Difference]: Start difference. First operand 11586 states and 32167 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:39,215 INFO L93 Difference]: Finished difference Result 11745 states and 32524 transitions. [2022-01-18 11:00:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:39,233 INFO L225 Difference]: With dead ends: 11745 [2022-01-18 11:00:39,234 INFO L226 Difference]: Without dead ends: 11542 [2022-01-18 11:00:39,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:39,234 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:39,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 2413 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-01-18 11:00:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 11542. [2022-01-18 11:00:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11542 states, 11541 states have (on average 2.7798284377436966) internal successors, (32082), 11541 states have internal predecessors, (32082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11542 states to 11542 states and 32082 transitions. [2022-01-18 11:00:39,388 INFO L78 Accepts]: Start accepts. Automaton has 11542 states and 32082 transitions. Word has length 227 [2022-01-18 11:00:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:39,388 INFO L470 AbstractCegarLoop]: Abstraction has 11542 states and 32082 transitions. [2022-01-18 11:00:39,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 11542 states and 32082 transitions. [2022-01-18 11:00:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:39,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:39,403 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:39,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 11:00:39,403 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2010123885, now seen corresponding path program 16 times [2022-01-18 11:00:39,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:39,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188462028] [2022-01-18 11:00:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:39,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:39,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:39,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188462028] [2022-01-18 11:00:39,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188462028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:39,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:39,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:39,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746314024] [2022-01-18 11:00:39,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:39,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:39,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:39,495 INFO L87 Difference]: Start difference. First operand 11542 states and 32082 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:39,738 INFO L93 Difference]: Finished difference Result 13860 states and 38299 transitions. [2022-01-18 11:00:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:39,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:39,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:39,760 INFO L225 Difference]: With dead ends: 13860 [2022-01-18 11:00:39,761 INFO L226 Difference]: Without dead ends: 13713 [2022-01-18 11:00:39,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:39,761 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 244 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:39,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 2497 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2022-01-18 11:00:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 11950. [2022-01-18 11:00:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11949 states have (on average 2.7719474433006948) internal successors, (33122), 11949 states have internal predecessors, (33122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 33122 transitions. [2022-01-18 11:00:39,928 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 33122 transitions. Word has length 227 [2022-01-18 11:00:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:39,928 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 33122 transitions. [2022-01-18 11:00:39,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 33122 transitions. [2022-01-18 11:00:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:39,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:39,943 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:39,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 11:00:39,943 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:39,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:39,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1196122665, now seen corresponding path program 17 times [2022-01-18 11:00:39,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:39,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579007513] [2022-01-18 11:00:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:39,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:40,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:40,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579007513] [2022-01-18 11:00:40,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579007513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:40,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:40,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:40,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647078541] [2022-01-18 11:00:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:40,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:40,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:40,037 INFO L87 Difference]: Start difference. First operand 11950 states and 33122 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:40,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:40,309 INFO L93 Difference]: Finished difference Result 13884 states and 38315 transitions. [2022-01-18 11:00:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:40,309 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:40,331 INFO L225 Difference]: With dead ends: 13884 [2022-01-18 11:00:40,331 INFO L226 Difference]: Without dead ends: 13457 [2022-01-18 11:00:40,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:40,331 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 267 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:40,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2273 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-01-18 11:00:40,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 11694. [2022-01-18 11:00:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11694 states, 11693 states have (on average 2.7724279483451637) internal successors, (32418), 11693 states have internal predecessors, (32418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11694 states to 11694 states and 32418 transitions. [2022-01-18 11:00:40,485 INFO L78 Accepts]: Start accepts. Automaton has 11694 states and 32418 transitions. Word has length 227 [2022-01-18 11:00:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:40,485 INFO L470 AbstractCegarLoop]: Abstraction has 11694 states and 32418 transitions. [2022-01-18 11:00:40,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states and 32418 transitions. [2022-01-18 11:00:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:40,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:40,499 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:40,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 11:00:40,500 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:40,500 INFO L85 PathProgramCache]: Analyzing trace with hash -685909295, now seen corresponding path program 18 times [2022-01-18 11:00:40,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:40,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402628213] [2022-01-18 11:00:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:40,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:40,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:40,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402628213] [2022-01-18 11:00:40,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402628213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:40,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:40,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:40,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747505632] [2022-01-18 11:00:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:40,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:40,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:40,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:40,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:40,590 INFO L87 Difference]: Start difference. First operand 11694 states and 32418 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:40,800 INFO L93 Difference]: Finished difference Result 13574 states and 37512 transitions. [2022-01-18 11:00:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:00:40,801 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:40,822 INFO L225 Difference]: With dead ends: 13574 [2022-01-18 11:00:40,822 INFO L226 Difference]: Without dead ends: 13356 [2022-01-18 11:00:40,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:00:40,822 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 181 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:40,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 2433 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-01-18 11:00:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11662. [2022-01-18 11:00:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11662 states, 11661 states have (on average 2.772489494897522) internal successors, (32330), 11661 states have internal predecessors, (32330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 32330 transitions. [2022-01-18 11:00:41,051 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 32330 transitions. Word has length 227 [2022-01-18 11:00:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:41,051 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 32330 transitions. [2022-01-18 11:00:41,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 32330 transitions. [2022-01-18 11:00:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:41,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:41,065 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:41,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 11:00:41,065 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:41,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:41,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1501618079, now seen corresponding path program 19 times [2022-01-18 11:00:41,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:41,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108527183] [2022-01-18 11:00:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:41,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:41,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:41,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108527183] [2022-01-18 11:00:41,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108527183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:41,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:41,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:41,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064118893] [2022-01-18 11:00:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:41,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:41,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:41,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:41,168 INFO L87 Difference]: Start difference. First operand 11662 states and 32330 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:41,370 INFO L93 Difference]: Finished difference Result 13422 states and 37144 transitions. [2022-01-18 11:00:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:41,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:41,392 INFO L225 Difference]: With dead ends: 13422 [2022-01-18 11:00:41,392 INFO L226 Difference]: Without dead ends: 13189 [2022-01-18 11:00:41,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:41,392 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 174 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:41,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2013 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-01-18 11:00:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 11495. [2022-01-18 11:00:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11495 states, 11494 states have (on average 2.7801461632155906) internal successors, (31955), 11494 states have internal predecessors, (31955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 31955 transitions. [2022-01-18 11:00:41,548 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 31955 transitions. Word has length 227 [2022-01-18 11:00:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:41,548 INFO L470 AbstractCegarLoop]: Abstraction has 11495 states and 31955 transitions. [2022-01-18 11:00:41,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 31955 transitions. [2022-01-18 11:00:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:41,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:41,563 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:41,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 11:00:41,563 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:41,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2070406251, now seen corresponding path program 20 times [2022-01-18 11:00:41,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:41,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778886199] [2022-01-18 11:00:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:41,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:41,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:41,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778886199] [2022-01-18 11:00:41,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778886199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:41,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:41,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:41,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309212519] [2022-01-18 11:00:41,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:41,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:41,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:41,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:41,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:41,657 INFO L87 Difference]: Start difference. First operand 11495 states and 31955 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:41,894 INFO L93 Difference]: Finished difference Result 13970 states and 38585 transitions. [2022-01-18 11:00:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:41,915 INFO L225 Difference]: With dead ends: 13970 [2022-01-18 11:00:41,915 INFO L226 Difference]: Without dead ends: 13823 [2022-01-18 11:00:41,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:41,916 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 230 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:41,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2624 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2022-01-18 11:00:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 11907. [2022-01-18 11:00:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11907 states, 11906 states have (on average 2.772215689568285) internal successors, (33006), 11906 states have internal predecessors, (33006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11907 states to 11907 states and 33006 transitions. [2022-01-18 11:00:42,077 INFO L78 Accepts]: Start accepts. Automaton has 11907 states and 33006 transitions. Word has length 227 [2022-01-18 11:00:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:42,078 INFO L470 AbstractCegarLoop]: Abstraction has 11907 states and 33006 transitions. [2022-01-18 11:00:42,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand 11907 states and 33006 transitions. [2022-01-18 11:00:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:42,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:42,092 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:42,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 11:00:42,092 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1135840299, now seen corresponding path program 21 times [2022-01-18 11:00:42,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:42,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251542124] [2022-01-18 11:00:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:42,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:42,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251542124] [2022-01-18 11:00:42,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251542124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:42,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:42,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:42,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897780497] [2022-01-18 11:00:42,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:42,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:42,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:42,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:42,187 INFO L87 Difference]: Start difference. First operand 11907 states and 33006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:42,475 INFO L93 Difference]: Finished difference Result 13994 states and 38601 transitions. [2022-01-18 11:00:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:42,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:42,498 INFO L225 Difference]: With dead ends: 13994 [2022-01-18 11:00:42,498 INFO L226 Difference]: Without dead ends: 13567 [2022-01-18 11:00:42,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:42,499 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 240 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:42,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2600 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2022-01-18 11:00:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 11651. [2022-01-18 11:00:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11650 states have (on average 2.7727038626609444) internal successors, (32302), 11650 states have internal predecessors, (32302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 32302 transitions. [2022-01-18 11:00:42,653 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 32302 transitions. Word has length 227 [2022-01-18 11:00:42,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:42,653 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 32302 transitions. [2022-01-18 11:00:42,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,653 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 32302 transitions. [2022-01-18 11:00:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:42,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:42,666 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:42,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 11:00:42,666 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:42,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash -746191661, now seen corresponding path program 22 times [2022-01-18 11:00:42,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:42,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946374006] [2022-01-18 11:00:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:42,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:42,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:42,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946374006] [2022-01-18 11:00:42,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946374006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:42,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:42,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:42,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211565922] [2022-01-18 11:00:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:42,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:42,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:42,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:42,757 INFO L87 Difference]: Start difference. First operand 11651 states and 32302 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:42,965 INFO L93 Difference]: Finished difference Result 13564 states and 37518 transitions. [2022-01-18 11:00:42,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:42,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:42,985 INFO L225 Difference]: With dead ends: 13564 [2022-01-18 11:00:42,986 INFO L226 Difference]: Without dead ends: 13346 [2022-01-18 11:00:42,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:00:42,986 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 167 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:42,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 2344 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13346 states. [2022-01-18 11:00:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13346 to 11499. [2022-01-18 11:00:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 11498 states have (on average 2.779787789180727) internal successors, (31962), 11498 states have internal predecessors, (31962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:43,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 31962 transitions. [2022-01-18 11:00:43,195 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 31962 transitions. Word has length 227 [2022-01-18 11:00:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:43,195 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 31962 transitions. [2022-01-18 11:00:43,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 31962 transitions. [2022-01-18 11:00:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:43,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:43,208 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:43,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 11:00:43,208 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:43,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:43,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1103575843, now seen corresponding path program 23 times [2022-01-18 11:00:43,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:43,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036971763] [2022-01-18 11:00:43,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:43,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:43,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:43,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036971763] [2022-01-18 11:00:43,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036971763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:43,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:43,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:43,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822489548] [2022-01-18 11:00:43,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:43,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:43,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:43,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:43,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:43,306 INFO L87 Difference]: Start difference. First operand 11499 states and 31962 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:43,583 INFO L93 Difference]: Finished difference Result 13964 states and 38504 transitions. [2022-01-18 11:00:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:43,605 INFO L225 Difference]: With dead ends: 13964 [2022-01-18 11:00:43,605 INFO L226 Difference]: Without dead ends: 13817 [2022-01-18 11:00:43,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:43,605 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 224 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:43,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2654 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2022-01-18 11:00:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 11892. [2022-01-18 11:00:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11892 states, 11891 states have (on average 2.7724329324699353) internal successors, (32967), 11891 states have internal predecessors, (32967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11892 states to 11892 states and 32967 transitions. [2022-01-18 11:00:43,761 INFO L78 Accepts]: Start accepts. Automaton has 11892 states and 32967 transitions. Word has length 227 [2022-01-18 11:00:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:43,761 INFO L470 AbstractCegarLoop]: Abstraction has 11892 states and 32967 transitions. [2022-01-18 11:00:43,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11892 states and 32967 transitions. [2022-01-18 11:00:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:43,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:43,775 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:43,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 11:00:43,775 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:43,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:43,775 INFO L85 PathProgramCache]: Analyzing trace with hash 14855097, now seen corresponding path program 24 times [2022-01-18 11:00:43,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:43,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262670191] [2022-01-18 11:00:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:43,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:43,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:43,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262670191] [2022-01-18 11:00:43,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262670191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:43,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:43,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:43,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165970085] [2022-01-18 11:00:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:43,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:43,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:43,875 INFO L87 Difference]: Start difference. First operand 11892 states and 32967 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:44,135 INFO L93 Difference]: Finished difference Result 13814 states and 38141 transitions. [2022-01-18 11:00:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:44,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:44,155 INFO L225 Difference]: With dead ends: 13814 [2022-01-18 11:00:44,155 INFO L226 Difference]: Without dead ends: 13387 [2022-01-18 11:00:44,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:44,156 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 206 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:44,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2647 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13387 states. [2022-01-18 11:00:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13387 to 11531. [2022-01-18 11:00:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11531 states, 11530 states have (on average 2.77692974848222) internal successors, (32018), 11530 states have internal predecessors, (32018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 32018 transitions. [2022-01-18 11:00:44,309 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 32018 transitions. Word has length 227 [2022-01-18 11:00:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:44,309 INFO L470 AbstractCegarLoop]: Abstraction has 11531 states and 32018 transitions. [2022-01-18 11:00:44,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 32018 transitions. [2022-01-18 11:00:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:44,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:44,323 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:44,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 11:00:44,323 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:44,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash -514849637, now seen corresponding path program 25 times [2022-01-18 11:00:44,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:44,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575357799] [2022-01-18 11:00:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:44,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:44,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:44,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575357799] [2022-01-18 11:00:44,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575357799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:44,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:44,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:44,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065081748] [2022-01-18 11:00:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:44,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:44,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:44,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:44,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:44,413 INFO L87 Difference]: Start difference. First operand 11531 states and 32018 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:44,597 INFO L93 Difference]: Finished difference Result 13384 states and 37058 transitions. [2022-01-18 11:00:44,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:44,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:44,617 INFO L225 Difference]: With dead ends: 13384 [2022-01-18 11:00:44,617 INFO L226 Difference]: Without dead ends: 13185 [2022-01-18 11:00:44,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:44,617 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 127 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:44,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2530 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2022-01-18 11:00:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 11491. [2022-01-18 11:00:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11491 states, 11490 states have (on average 2.7801566579634467) internal successors, (31944), 11490 states have internal predecessors, (31944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11491 states to 11491 states and 31944 transitions. [2022-01-18 11:00:44,768 INFO L78 Accepts]: Start accepts. Automaton has 11491 states and 31944 transitions. Word has length 227 [2022-01-18 11:00:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:44,768 INFO L470 AbstractCegarLoop]: Abstraction has 11491 states and 31944 transitions. [2022-01-18 11:00:44,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 11491 states and 31944 transitions. [2022-01-18 11:00:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:44,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:44,782 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:44,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 11:00:44,782 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:44,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:44,782 INFO L85 PathProgramCache]: Analyzing trace with hash 805446415, now seen corresponding path program 26 times [2022-01-18 11:00:44,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:44,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30373730] [2022-01-18 11:00:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:44,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:44,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:44,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30373730] [2022-01-18 11:00:44,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30373730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:44,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:44,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:44,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517240823] [2022-01-18 11:00:44,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:44,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:44,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:44,866 INFO L87 Difference]: Start difference. First operand 11491 states and 31944 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:45,088 INFO L93 Difference]: Finished difference Result 13762 states and 38038 transitions. [2022-01-18 11:00:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:00:45,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:45,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:45,109 INFO L225 Difference]: With dead ends: 13762 [2022-01-18 11:00:45,109 INFO L226 Difference]: Without dead ends: 13615 [2022-01-18 11:00:45,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:45,110 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 256 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:45,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 2799 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-01-18 11:00:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 12075. [2022-01-18 11:00:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12075 states, 12074 states have (on average 2.773231737618022) internal successors, (33484), 12074 states have internal predecessors, (33484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 33484 transitions. [2022-01-18 11:00:45,335 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 33484 transitions. Word has length 227 [2022-01-18 11:00:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:45,335 INFO L470 AbstractCegarLoop]: Abstraction has 12075 states and 33484 transitions. [2022-01-18 11:00:45,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 33484 transitions. [2022-01-18 11:00:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:45,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:45,350 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:45,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 11:00:45,350 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash -283274331, now seen corresponding path program 27 times [2022-01-18 11:00:45,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:45,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077759996] [2022-01-18 11:00:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:45,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:45,439 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:45,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:45,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077759996] [2022-01-18 11:00:45,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077759996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:45,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:45,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:45,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685977413] [2022-01-18 11:00:45,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:45,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:45,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:45,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:45,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:45,440 INFO L87 Difference]: Start difference. First operand 12075 states and 33484 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:45,686 INFO L93 Difference]: Finished difference Result 13786 states and 38054 transitions. [2022-01-18 11:00:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:45,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:45,706 INFO L225 Difference]: With dead ends: 13786 [2022-01-18 11:00:45,706 INFO L226 Difference]: Without dead ends: 13359 [2022-01-18 11:00:45,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:45,707 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 269 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:45,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2547 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:45,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2022-01-18 11:00:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 11819. [2022-01-18 11:00:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11819 states, 11818 states have (on average 2.773734980538162) internal successors, (32780), 11818 states have internal predecessors, (32780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11819 states to 11819 states and 32780 transitions. [2022-01-18 11:00:45,887 INFO L78 Accepts]: Start accepts. Automaton has 11819 states and 32780 transitions. Word has length 227 [2022-01-18 11:00:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:45,887 INFO L470 AbstractCegarLoop]: Abstraction has 11819 states and 32780 transitions. [2022-01-18 11:00:45,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:45,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11819 states and 32780 transitions. [2022-01-18 11:00:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:45,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:45,902 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:45,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 11:00:45,902 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:45,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2129661005, now seen corresponding path program 28 times [2022-01-18 11:00:45,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:45,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645805278] [2022-01-18 11:00:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:45,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:45,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:45,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645805278] [2022-01-18 11:00:45,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645805278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:45,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:45,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:45,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810385550] [2022-01-18 11:00:45,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:45,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:45,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:45,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:45,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:45,996 INFO L87 Difference]: Start difference. First operand 11819 states and 32780 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:46,198 INFO L93 Difference]: Finished difference Result 13356 states and 36971 transitions. [2022-01-18 11:00:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:46,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:46,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:46,219 INFO L225 Difference]: With dead ends: 13356 [2022-01-18 11:00:46,219 INFO L226 Difference]: Without dead ends: 13138 [2022-01-18 11:00:46,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:46,219 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 201 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:46,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2240 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2022-01-18 11:00:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 11667. [2022-01-18 11:00:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11667 states, 11666 states have (on average 2.7807303274472828) internal successors, (32440), 11666 states have internal predecessors, (32440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 32440 transitions. [2022-01-18 11:00:46,368 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 32440 transitions. Word has length 227 [2022-01-18 11:00:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:46,368 INFO L470 AbstractCegarLoop]: Abstraction has 11667 states and 32440 transitions. [2022-01-18 11:00:46,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 32440 transitions. [2022-01-18 11:00:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:46,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:46,382 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:46,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 11:00:46,382 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -315538787, now seen corresponding path program 29 times [2022-01-18 11:00:46,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:46,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194252257] [2022-01-18 11:00:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:46,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:46,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:46,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194252257] [2022-01-18 11:00:46,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194252257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:46,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:46,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:46,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889270991] [2022-01-18 11:00:46,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:46,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:46,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:46,478 INFO L87 Difference]: Start difference. First operand 11667 states and 32440 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:46,760 INFO L93 Difference]: Finished difference Result 13909 states and 38359 transitions. [2022-01-18 11:00:46,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:46,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:46,784 INFO L225 Difference]: With dead ends: 13909 [2022-01-18 11:00:46,785 INFO L226 Difference]: Without dead ends: 13762 [2022-01-18 11:00:46,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:00:46,785 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 315 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:46,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 2527 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-01-18 11:00:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12060. [2022-01-18 11:00:46,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12060 states, 12059 states have (on average 2.7734472178455927) internal successors, (33445), 12059 states have internal predecessors, (33445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12060 states to 12060 states and 33445 transitions. [2022-01-18 11:00:46,963 INFO L78 Accepts]: Start accepts. Automaton has 12060 states and 33445 transitions. Word has length 227 [2022-01-18 11:00:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:46,963 INFO L470 AbstractCegarLoop]: Abstraction has 12060 states and 33445 transitions. [2022-01-18 11:00:46,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 12060 states and 33445 transitions. [2022-01-18 11:00:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:46,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:46,978 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 11:00:46,978 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1404259533, now seen corresponding path program 30 times [2022-01-18 11:00:46,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510557613] [2022-01-18 11:00:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:46,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:47,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:47,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510557613] [2022-01-18 11:00:47,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510557613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:47,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:47,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:47,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377638088] [2022-01-18 11:00:47,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:47,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:47,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:47,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:47,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:47,068 INFO L87 Difference]: Start difference. First operand 12060 states and 33445 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:47,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:47,346 INFO L93 Difference]: Finished difference Result 13759 states and 37996 transitions. [2022-01-18 11:00:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:00:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:47,366 INFO L225 Difference]: With dead ends: 13759 [2022-01-18 11:00:47,366 INFO L226 Difference]: Without dead ends: 13332 [2022-01-18 11:00:47,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:00:47,367 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 295 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:47,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 2769 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:47,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2022-01-18 11:00:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11699. [2022-01-18 11:00:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 11698 states have (on average 2.7779107539750383) internal successors, (32496), 11698 states have internal predecessors, (32496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32496 transitions. [2022-01-18 11:00:47,521 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32496 transitions. Word has length 227 [2022-01-18 11:00:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:47,521 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 32496 transitions. [2022-01-18 11:00:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32496 transitions. [2022-01-18 11:00:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:47,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:47,535 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:47,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 11:00:47,535 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1933964267, now seen corresponding path program 31 times [2022-01-18 11:00:47,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:47,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183977319] [2022-01-18 11:00:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:47,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:47,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:47,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183977319] [2022-01-18 11:00:47,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183977319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:47,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:47,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:47,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852667195] [2022-01-18 11:00:47,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:47,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:47,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:47,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:47,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:47,624 INFO L87 Difference]: Start difference. First operand 11699 states and 32496 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:47,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:47,815 INFO L93 Difference]: Finished difference Result 13329 states and 36913 transitions. [2022-01-18 11:00:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:47,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:47,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:47,834 INFO L225 Difference]: With dead ends: 13329 [2022-01-18 11:00:47,835 INFO L226 Difference]: Without dead ends: 13134 [2022-01-18 11:00:47,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:00:47,835 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 174 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:47,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2725 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-01-18 11:00:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11663. [2022-01-18 11:00:47,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11662 states have (on average 2.7807408677756817) internal successors, (32429), 11662 states have internal predecessors, (32429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 32429 transitions. [2022-01-18 11:00:48,019 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 32429 transitions. Word has length 227 [2022-01-18 11:00:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:48,019 INFO L470 AbstractCegarLoop]: Abstraction has 11663 states and 32429 transitions. [2022-01-18 11:00:48,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 32429 transitions. [2022-01-18 11:00:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:48,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:48,033 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:48,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 11:00:48,033 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:48,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:48,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1079264617, now seen corresponding path program 32 times [2022-01-18 11:00:48,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:48,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479235104] [2022-01-18 11:00:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:48,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:48,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:48,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479235104] [2022-01-18 11:00:48,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479235104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:48,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:48,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:48,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400163014] [2022-01-18 11:00:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:48,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:48,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:48,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:48,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:48,121 INFO L87 Difference]: Start difference. First operand 11663 states and 32429 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:48,409 INFO L93 Difference]: Finished difference Result 14563 states and 40037 transitions. [2022-01-18 11:00:48,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:48,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:48,431 INFO L225 Difference]: With dead ends: 14563 [2022-01-18 11:00:48,431 INFO L226 Difference]: Without dead ends: 14416 [2022-01-18 11:00:48,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:00:48,432 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 488 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:48,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2773 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:48,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-01-18 11:00:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 13479. [2022-01-18 11:00:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13479 states, 13478 states have (on average 2.780011871197507) internal successors, (37469), 13478 states have internal predecessors, (37469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13479 states to 13479 states and 37469 transitions. [2022-01-18 11:00:48,614 INFO L78 Accepts]: Start accepts. Automaton has 13479 states and 37469 transitions. Word has length 227 [2022-01-18 11:00:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:48,614 INFO L470 AbstractCegarLoop]: Abstraction has 13479 states and 37469 transitions. [2022-01-18 11:00:48,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13479 states and 37469 transitions. [2022-01-18 11:00:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:48,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:48,631 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:48,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 11:00:48,631 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:48,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:48,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2126981933, now seen corresponding path program 33 times [2022-01-18 11:00:48,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:48,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352431136] [2022-01-18 11:00:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:48,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:48,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:48,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352431136] [2022-01-18 11:00:48,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352431136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:48,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:48,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:48,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996239071] [2022-01-18 11:00:48,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:48,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:48,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:48,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:48,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:48,716 INFO L87 Difference]: Start difference. First operand 13479 states and 37469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:48,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:48,992 INFO L93 Difference]: Finished difference Result 14413 states and 39674 transitions. [2022-01-18 11:00:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:00:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:49,014 INFO L225 Difference]: With dead ends: 14413 [2022-01-18 11:00:49,014 INFO L226 Difference]: Without dead ends: 13986 [2022-01-18 11:00:49,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:00:49,015 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 465 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:49,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 2542 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:49,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-01-18 11:00:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 13223. [2022-01-18 11:00:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13223 states, 13222 states have (on average 2.780592951142036) internal successors, (36765), 13222 states have internal predecessors, (36765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 36765 transitions. [2022-01-18 11:00:49,197 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 36765 transitions. Word has length 227 [2022-01-18 11:00:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:49,197 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 36765 transitions. [2022-01-18 11:00:49,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 36765 transitions. [2022-01-18 11:00:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:49,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:49,214 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:49,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 11:00:49,215 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:49,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1597277199, now seen corresponding path program 34 times [2022-01-18 11:00:49,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:49,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151797498] [2022-01-18 11:00:49,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:49,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:49,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:49,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151797498] [2022-01-18 11:00:49,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151797498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:49,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:49,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:49,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216769954] [2022-01-18 11:00:49,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:49,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:49,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:49,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:49,302 INFO L87 Difference]: Start difference. First operand 13223 states and 36765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:49,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:49,538 INFO L93 Difference]: Finished difference Result 14079 states and 38823 transitions. [2022-01-18 11:00:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:49,560 INFO L225 Difference]: With dead ends: 14079 [2022-01-18 11:00:49,560 INFO L226 Difference]: Without dead ends: 13888 [2022-01-18 11:00:49,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:49,560 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 319 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:49,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 3142 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-01-18 11:00:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13191. [2022-01-18 11:00:49,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13190 states have (on average 2.7806671721000757) internal successors, (36677), 13190 states have internal predecessors, (36677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 36677 transitions. [2022-01-18 11:00:49,738 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 36677 transitions. Word has length 227 [2022-01-18 11:00:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:49,739 INFO L470 AbstractCegarLoop]: Abstraction has 13191 states and 36677 transitions. [2022-01-18 11:00:49,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 36677 transitions. [2022-01-18 11:00:49,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:49,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:49,756 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:49,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 11:00:49,757 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:49,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1182713145, now seen corresponding path program 35 times [2022-01-18 11:00:49,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:49,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567356235] [2022-01-18 11:00:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:49,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:49,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:49,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567356235] [2022-01-18 11:00:49,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567356235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:49,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:49,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:49,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168261684] [2022-01-18 11:00:49,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:49,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:49,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:49,841 INFO L87 Difference]: Start difference. First operand 13191 states and 36677 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:50,062 INFO L93 Difference]: Finished difference Result 13951 states and 38503 transitions. [2022-01-18 11:00:50,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:50,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:50,086 INFO L225 Difference]: With dead ends: 13951 [2022-01-18 11:00:50,086 INFO L226 Difference]: Without dead ends: 13736 [2022-01-18 11:00:50,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:50,087 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 360 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:50,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3045 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:50,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-01-18 11:00:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 12979. [2022-01-18 11:00:50,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 12978 states have (on average 2.7743874248728617) internal successors, (36006), 12978 states have internal predecessors, (36006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 36006 transitions. [2022-01-18 11:00:50,266 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 36006 transitions. Word has length 227 [2022-01-18 11:00:50,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:50,266 INFO L470 AbstractCegarLoop]: Abstraction has 12979 states and 36006 transitions. [2022-01-18 11:00:50,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,266 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 36006 transitions. [2022-01-18 11:00:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:50,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:50,282 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:50,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 11:00:50,282 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1918630919, now seen corresponding path program 1 times [2022-01-18 11:00:50,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:50,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26784133] [2022-01-18 11:00:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:50,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:50,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:50,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26784133] [2022-01-18 11:00:50,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26784133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:50,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:50,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:50,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392958304] [2022-01-18 11:00:50,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:50,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:50,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:50,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:50,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:50,380 INFO L87 Difference]: Start difference. First operand 12979 states and 36006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:50,747 INFO L93 Difference]: Finished difference Result 16694 states and 45764 transitions. [2022-01-18 11:00:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:00:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:50,772 INFO L225 Difference]: With dead ends: 16694 [2022-01-18 11:00:50,773 INFO L226 Difference]: Without dead ends: 16547 [2022-01-18 11:00:50,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:00:50,773 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 363 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:50,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 3302 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16547 states. [2022-01-18 11:00:50,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16547 to 15795. [2022-01-18 11:00:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 2.762821324553628) internal successors, (43636), 15794 states have internal predecessors, (43636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 43636 transitions. [2022-01-18 11:00:50,983 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 43636 transitions. Word has length 227 [2022-01-18 11:00:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:50,983 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 43636 transitions. [2022-01-18 11:00:50,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 43636 transitions. [2022-01-18 11:00:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:51,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:51,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:51,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 11:00:51,005 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1287615631, now seen corresponding path program 2 times [2022-01-18 11:00:51,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:51,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445865191] [2022-01-18 11:00:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:51,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:51,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:51,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445865191] [2022-01-18 11:00:51,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445865191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:51,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:51,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:51,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973596307] [2022-01-18 11:00:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:51,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:51,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:51,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:51,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:51,089 INFO L87 Difference]: Start difference. First operand 15795 states and 43636 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:51,375 INFO L93 Difference]: Finished difference Result 16558 states and 45380 transitions. [2022-01-18 11:00:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:00:51,376 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:51,403 INFO L225 Difference]: With dead ends: 16558 [2022-01-18 11:00:51,403 INFO L226 Difference]: Without dead ends: 16131 [2022-01-18 11:00:51,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:00:51,404 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 362 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:51,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 3051 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-01-18 11:00:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15539. [2022-01-18 11:00:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 15538 states have (on average 2.7630325653237224) internal successors, (42932), 15538 states have internal predecessors, (42932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 42932 transitions. [2022-01-18 11:00:51,640 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 42932 transitions. Word has length 227 [2022-01-18 11:00:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:51,640 INFO L470 AbstractCegarLoop]: Abstraction has 15539 states and 42932 transitions. [2022-01-18 11:00:51,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 42932 transitions. [2022-01-18 11:00:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:51,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:51,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:51,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 11:00:51,662 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:51,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -594416329, now seen corresponding path program 3 times [2022-01-18 11:00:51,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:51,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603483838] [2022-01-18 11:00:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:51,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:51,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:51,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603483838] [2022-01-18 11:00:51,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603483838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:51,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:51,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:51,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456449095] [2022-01-18 11:00:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:51,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:51,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:51,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:51,751 INFO L87 Difference]: Start difference. First operand 15539 states and 42932 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:52,017 INFO L93 Difference]: Finished difference Result 16188 states and 44437 transitions. [2022-01-18 11:00:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:52,018 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:52,043 INFO L225 Difference]: With dead ends: 16188 [2022-01-18 11:00:52,043 INFO L226 Difference]: Without dead ends: 15970 [2022-01-18 11:00:52,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:52,044 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 280 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:52,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3296 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-01-18 11:00:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15507. [2022-01-18 11:00:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15507 states, 15506 states have (on average 2.7630594608538632) internal successors, (42844), 15506 states have internal predecessors, (42844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 42844 transitions. [2022-01-18 11:00:52,251 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 42844 transitions. Word has length 227 [2022-01-18 11:00:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:52,252 INFO L470 AbstractCegarLoop]: Abstraction has 15507 states and 42844 transitions. [2022-01-18 11:00:52,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 42844 transitions. [2022-01-18 11:00:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:52,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:52,270 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:52,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 11:00:52,270 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:52,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:52,270 INFO L85 PathProgramCache]: Analyzing trace with hash -927845791, now seen corresponding path program 4 times [2022-01-18 11:00:52,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:52,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986730276] [2022-01-18 11:00:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:52,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:52,359 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:52,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:52,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986730276] [2022-01-18 11:00:52,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986730276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:52,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:52,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:52,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121311719] [2022-01-18 11:00:52,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:52,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:52,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:52,361 INFO L87 Difference]: Start difference. First operand 15507 states and 42844 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:52,587 INFO L93 Difference]: Finished difference Result 16096 states and 44209 transitions. [2022-01-18 11:00:52,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:52,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:52,611 INFO L225 Difference]: With dead ends: 16096 [2022-01-18 11:00:52,611 INFO L226 Difference]: Without dead ends: 15863 [2022-01-18 11:00:52,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:52,612 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 313 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:52,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 3190 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2022-01-18 11:00:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15460. [2022-01-18 11:00:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.762274403260237) internal successors, (42702), 15459 states have internal predecessors, (42702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42702 transitions. [2022-01-18 11:00:52,818 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42702 transitions. Word has length 227 [2022-01-18 11:00:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:52,819 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42702 transitions. [2022-01-18 11:00:52,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42702 transitions. [2022-01-18 11:00:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:52,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:52,838 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:52,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 11:00:52,839 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1157381049, now seen corresponding path program 5 times [2022-01-18 11:00:52,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:52,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212094490] [2022-01-18 11:00:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:52,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:52,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:52,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212094490] [2022-01-18 11:00:52,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212094490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:52,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:52,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:52,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939648742] [2022-01-18 11:00:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:52,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:52,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:52,950 INFO L87 Difference]: Start difference. First operand 15460 states and 42702 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:53,332 INFO L93 Difference]: Finished difference Result 16353 states and 44929 transitions. [2022-01-18 11:00:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:00:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:53,359 INFO L225 Difference]: With dead ends: 16353 [2022-01-18 11:00:53,359 INFO L226 Difference]: Without dead ends: 16206 [2022-01-18 11:00:53,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:00:53,360 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 242 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:53,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 3013 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16206 states. [2022-01-18 11:00:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16206 to 15752. [2022-01-18 11:00:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7600152371278015) internal successors, (43473), 15751 states have internal predecessors, (43473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43473 transitions. [2022-01-18 11:00:53,581 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43473 transitions. Word has length 227 [2022-01-18 11:00:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:53,581 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43473 transitions. [2022-01-18 11:00:53,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43473 transitions. [2022-01-18 11:00:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:53,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:53,604 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:53,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 11:00:53,604 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash 68660303, now seen corresponding path program 6 times [2022-01-18 11:00:53,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:53,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285771237] [2022-01-18 11:00:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:53,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:53,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:53,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285771237] [2022-01-18 11:00:53,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285771237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:53,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:53,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:53,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410406877] [2022-01-18 11:00:53,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:53,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:53,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:53,693 INFO L87 Difference]: Start difference. First operand 15752 states and 43473 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:53,996 INFO L93 Difference]: Finished difference Result 16377 states and 44945 transitions. [2022-01-18 11:00:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:00:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:54,026 INFO L225 Difference]: With dead ends: 16377 [2022-01-18 11:00:54,026 INFO L226 Difference]: Without dead ends: 15950 [2022-01-18 11:00:54,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:00:54,026 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 232 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:54,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2996 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2022-01-18 11:00:54,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15496. [2022-01-18 11:00:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.760180703452727) internal successors, (42769), 15495 states have internal predecessors, (42769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42769 transitions. [2022-01-18 11:00:54,272 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42769 transitions. Word has length 227 [2022-01-18 11:00:54,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:54,273 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42769 transitions. [2022-01-18 11:00:54,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42769 transitions. [2022-01-18 11:00:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:54,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:54,294 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:54,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 11:00:54,295 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:54,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1813371657, now seen corresponding path program 7 times [2022-01-18 11:00:54,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:54,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604451202] [2022-01-18 11:00:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:54,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:54,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:54,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604451202] [2022-01-18 11:00:54,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604451202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:54,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:54,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:54,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619141299] [2022-01-18 11:00:54,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:54,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:54,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:54,386 INFO L87 Difference]: Start difference. First operand 15496 states and 42769 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:54,619 INFO L93 Difference]: Finished difference Result 15947 states and 43862 transitions. [2022-01-18 11:00:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:54,645 INFO L225 Difference]: With dead ends: 15947 [2022-01-18 11:00:54,645 INFO L226 Difference]: Without dead ends: 15729 [2022-01-18 11:00:54,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:00:54,646 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 160 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:54,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2932 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2022-01-18 11:00:54,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15464. [2022-01-18 11:00:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.762012546077734) internal successors, (42709), 15463 states have internal predecessors, (42709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:54,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42709 transitions. [2022-01-18 11:00:54,876 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42709 transitions. Word has length 227 [2022-01-18 11:00:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:54,877 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42709 transitions. [2022-01-18 11:00:54,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42709 transitions. [2022-01-18 11:00:54,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:54,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:54,898 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:54,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 11:00:54,898 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash 36395847, now seen corresponding path program 8 times [2022-01-18 11:00:54,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:54,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955140050] [2022-01-18 11:00:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:54,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:54,991 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:54,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:54,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955140050] [2022-01-18 11:00:54,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955140050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:54,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:54,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:54,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146269881] [2022-01-18 11:00:54,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:54,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:54,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:54,992 INFO L87 Difference]: Start difference. First operand 15464 states and 42709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:55,285 INFO L93 Difference]: Finished difference Result 16347 states and 44848 transitions. [2022-01-18 11:00:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:00:55,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:55,312 INFO L225 Difference]: With dead ends: 16347 [2022-01-18 11:00:55,312 INFO L226 Difference]: Without dead ends: 16200 [2022-01-18 11:00:55,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:55,312 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 230 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:55,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2666 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:55,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2022-01-18 11:00:55,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 15752. [2022-01-18 11:00:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-01-18 11:00:55,553 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-01-18 11:00:55,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:55,553 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-01-18 11:00:55,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,553 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-01-18 11:00:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:55,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:55,574 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:55,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 11:00:55,575 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:55,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1052324899, now seen corresponding path program 9 times [2022-01-18 11:00:55,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:55,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976321625] [2022-01-18 11:00:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:55,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:55,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:55,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976321625] [2022-01-18 11:00:55,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976321625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:55,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:55,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:55,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687078220] [2022-01-18 11:00:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:55,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:55,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:55,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:55,687 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:55,979 INFO L93 Difference]: Finished difference Result 16197 states and 44485 transitions. [2022-01-18 11:00:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:00:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:56,005 INFO L225 Difference]: With dead ends: 16197 [2022-01-18 11:00:56,005 INFO L226 Difference]: Without dead ends: 15770 [2022-01-18 11:00:56,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:56,005 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 200 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:56,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2910 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15770 states. [2022-01-18 11:00:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15770 to 15496. [2022-01-18 11:00:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-01-18 11:00:56,204 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-01-18 11:00:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:56,204 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-01-18 11:00:56,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-01-18 11:00:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:56,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:56,223 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:56,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 11:00:56,223 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:56,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1582029633, now seen corresponding path program 10 times [2022-01-18 11:00:56,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:56,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369032483] [2022-01-18 11:00:56,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:56,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:56,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:56,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369032483] [2022-01-18 11:00:56,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369032483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:56,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:56,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:56,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95458501] [2022-01-18 11:00:56,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:56,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:56,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:56,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:56,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:56,317 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:56,519 INFO L93 Difference]: Finished difference Result 15767 states and 43402 transitions. [2022-01-18 11:00:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:56,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:56,545 INFO L225 Difference]: With dead ends: 15767 [2022-01-18 11:00:56,545 INFO L226 Difference]: Without dead ends: 15568 [2022-01-18 11:00:56,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:00:56,545 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 149 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:56,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 2310 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2022-01-18 11:00:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15456. [2022-01-18 11:00:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15455 states have (on average 2.7620187641539955) internal successors, (42687), 15455 states have internal predecessors, (42687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 42687 transitions. [2022-01-18 11:00:56,779 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 42687 transitions. Word has length 227 [2022-01-18 11:00:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:56,779 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 42687 transitions. [2022-01-18 11:00:56,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 42687 transitions. [2022-01-18 11:00:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:56,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:56,801 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:56,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 11:00:56,801 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1902779655, now seen corresponding path program 11 times [2022-01-18 11:00:56,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:56,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594932337] [2022-01-18 11:00:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:56,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:56,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:56,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594932337] [2022-01-18 11:00:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594932337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:56,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:56,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:56,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478081676] [2022-01-18 11:00:56,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:56,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:56,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:56,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:56,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:56,905 INFO L87 Difference]: Start difference. First operand 15456 states and 42687 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:57,204 INFO L93 Difference]: Finished difference Result 16365 states and 44958 transitions. [2022-01-18 11:00:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:57,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:57,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:57,231 INFO L225 Difference]: With dead ends: 16365 [2022-01-18 11:00:57,231 INFO L226 Difference]: Without dead ends: 16218 [2022-01-18 11:00:57,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:57,231 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 197 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:57,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2711 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-01-18 11:00:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 15752. [2022-01-18 11:00:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-01-18 11:00:57,463 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-01-18 11:00:57,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:57,463 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-01-18 11:00:57,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-01-18 11:00:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:57,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:57,484 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:57,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 11:00:57,484 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:57,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:57,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1303466895, now seen corresponding path program 12 times [2022-01-18 11:00:57,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:57,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608631050] [2022-01-18 11:00:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:57,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:57,578 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:57,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:57,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608631050] [2022-01-18 11:00:57,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608631050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:57,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:57,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:57,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791154713] [2022-01-18 11:00:57,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:57,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:57,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:57,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:57,579 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:57,856 INFO L93 Difference]: Finished difference Result 16389 states and 44974 transitions. [2022-01-18 11:00:57,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:57,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:57,882 INFO L225 Difference]: With dead ends: 16389 [2022-01-18 11:00:57,882 INFO L226 Difference]: Without dead ends: 15962 [2022-01-18 11:00:57,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:57,883 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 196 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:57,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2484 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:57,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-01-18 11:00:58,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 15496. [2022-01-18 11:00:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-01-18 11:00:58,113 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-01-18 11:00:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:58,114 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-01-18 11:00:58,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-01-18 11:00:58,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:58,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:58,136 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:58,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 11:00:58,136 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:58,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:58,136 INFO L85 PathProgramCache]: Analyzing trace with hash -578565065, now seen corresponding path program 13 times [2022-01-18 11:00:58,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:58,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292242460] [2022-01-18 11:00:58,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:58,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:58,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292242460] [2022-01-18 11:00:58,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292242460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:58,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:58,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:58,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009616884] [2022-01-18 11:00:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:58,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:58,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:58,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:58,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:58,241 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:58,510 INFO L93 Difference]: Finished difference Result 15959 states and 43891 transitions. [2022-01-18 11:00:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:00:58,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:58,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:58,536 INFO L225 Difference]: With dead ends: 15959 [2022-01-18 11:00:58,536 INFO L226 Difference]: Without dead ends: 15741 [2022-01-18 11:00:58,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:00:58,537 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 127 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:58,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2417 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-01-18 11:00:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 15464. [2022-01-18 11:00:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.761753864062601) internal successors, (42705), 15463 states have internal predecessors, (42705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42705 transitions. [2022-01-18 11:00:58,769 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42705 transitions. Word has length 227 [2022-01-18 11:00:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:58,769 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42705 transitions. [2022-01-18 11:00:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42705 transitions. [2022-01-18 11:00:58,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:58,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:58,792 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:58,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 11:00:58,792 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:58,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1271202439, now seen corresponding path program 14 times [2022-01-18 11:00:58,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:58,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676893925] [2022-01-18 11:00:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:58,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:58,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:58,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676893925] [2022-01-18 11:00:58,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676893925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:58,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:58,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:58,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323183833] [2022-01-18 11:00:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:58,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:58,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:58,895 INFO L87 Difference]: Start difference. First operand 15464 states and 42705 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:59,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:59,202 INFO L93 Difference]: Finished difference Result 16443 states and 45108 transitions. [2022-01-18 11:00:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:00:59,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:59,231 INFO L225 Difference]: With dead ends: 16443 [2022-01-18 11:00:59,231 INFO L226 Difference]: Without dead ends: 16296 [2022-01-18 11:00:59,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:00:59,231 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 209 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:59,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2677 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:59,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-01-18 11:00:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 15752. [2022-01-18 11:00:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7595073328677544) internal successors, (43465), 15751 states have internal predecessors, (43465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43465 transitions. [2022-01-18 11:00:59,470 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43465 transitions. Word has length 227 [2022-01-18 11:00:59,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:59,470 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43465 transitions. [2022-01-18 11:00:59,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43465 transitions. [2022-01-18 11:00:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:00:59,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:59,493 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:59,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 11:00:59,493 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash 182481693, now seen corresponding path program 15 times [2022-01-18 11:00:59,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:59,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328420596] [2022-01-18 11:00:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:59,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:00:59,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328420596] [2022-01-18 11:00:59,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328420596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:59,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:59,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:00:59,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488367143] [2022-01-18 11:00:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:59,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:00:59,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:00:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:00:59,589 INFO L87 Difference]: Start difference. First operand 15752 states and 43465 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:59,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:59,846 INFO L93 Difference]: Finished difference Result 16293 states and 44745 transitions. [2022-01-18 11:00:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:00:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:00:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:59,873 INFO L225 Difference]: With dead ends: 16293 [2022-01-18 11:00:59,873 INFO L226 Difference]: Without dead ends: 15866 [2022-01-18 11:00:59,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:00:59,874 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 182 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:59,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2476 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2022-01-18 11:01:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15496. [2022-01-18 11:01:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7596644078735078) internal successors, (42761), 15495 states have internal predecessors, (42761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42761 transitions. [2022-01-18 11:01:00,110 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42761 transitions. Word has length 227 [2022-01-18 11:01:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:00,110 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42761 transitions. [2022-01-18 11:01:00,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42761 transitions. [2022-01-18 11:01:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:00,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:00,132 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:00,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 11:01:00,132 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash -347223041, now seen corresponding path program 16 times [2022-01-18 11:01:00,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:00,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874553143] [2022-01-18 11:01:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:00,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:00,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:00,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874553143] [2022-01-18 11:01:00,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874553143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:00,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:00,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:00,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886754732] [2022-01-18 11:01:00,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:00,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:00,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:00,236 INFO L87 Difference]: Start difference. First operand 15496 states and 42761 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:00,457 INFO L93 Difference]: Finished difference Result 15863 states and 43662 transitions. [2022-01-18 11:01:00,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:00,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:00,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:00,485 INFO L225 Difference]: With dead ends: 15863 [2022-01-18 11:01:00,485 INFO L226 Difference]: Without dead ends: 15668 [2022-01-18 11:01:00,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:01:00,485 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 114 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:00,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2398 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2022-01-18 11:01:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 15460. [2022-01-18 11:01:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.761756905362572) internal successors, (42694), 15459 states have internal predecessors, (42694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42694 transitions. [2022-01-18 11:01:00,710 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42694 transitions. Word has length 227 [2022-01-18 11:01:00,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:00,710 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42694 transitions. [2022-01-18 11:01:00,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42694 transitions. [2022-01-18 11:01:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:00,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:00,733 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:00,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 11:01:00,733 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:00,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:00,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1496021797, now seen corresponding path program 17 times [2022-01-18 11:01:00,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:00,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066951244] [2022-01-18 11:01:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:00,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:00,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:00,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066951244] [2022-01-18 11:01:00,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066951244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:00,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:00,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:00,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777178642] [2022-01-18 11:01:00,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:00,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:00,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:00,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:00,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:00,832 INFO L87 Difference]: Start difference. First operand 15460 states and 42694 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:01,175 INFO L93 Difference]: Finished difference Result 16387 states and 44950 transitions. [2022-01-18 11:01:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:01:01,175 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:01,201 INFO L225 Difference]: With dead ends: 16387 [2022-01-18 11:01:01,201 INFO L226 Difference]: Without dead ends: 16240 [2022-01-18 11:01:01,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:01:01,201 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 229 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:01,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2239 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2022-01-18 11:01:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15780. [2022-01-18 11:01:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15780 states, 15779 states have (on average 2.759490462006464) internal successors, (43542), 15779 states have internal predecessors, (43542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 43542 transitions. [2022-01-18 11:01:01,432 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 43542 transitions. Word has length 227 [2022-01-18 11:01:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:01,432 INFO L470 AbstractCegarLoop]: Abstraction has 15780 states and 43542 transitions. [2022-01-18 11:01:01,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 43542 transitions. [2022-01-18 11:01:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:01,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:01,453 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:01,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 11:01:01,454 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 407301051, now seen corresponding path program 18 times [2022-01-18 11:01:01,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:01,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568313453] [2022-01-18 11:01:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:01,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:01,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:01,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568313453] [2022-01-18 11:01:01,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568313453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:01,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:01,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:01,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137173478] [2022-01-18 11:01:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:01,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:01,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:01,555 INFO L87 Difference]: Start difference. First operand 15780 states and 43542 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:01,802 INFO L93 Difference]: Finished difference Result 16237 states and 44587 transitions. [2022-01-18 11:01:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:01:01,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:01,828 INFO L225 Difference]: With dead ends: 16237 [2022-01-18 11:01:01,828 INFO L226 Difference]: Without dead ends: 15810 [2022-01-18 11:01:01,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:01,829 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 199 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:01,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2233 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15810 states. [2022-01-18 11:01:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15810 to 15524. [2022-01-18 11:01:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15524 states, 15523 states have (on average 2.7596469754557753) internal successors, (42838), 15523 states have internal predecessors, (42838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15524 states to 15524 states and 42838 transitions. [2022-01-18 11:01:02,072 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 42838 transitions. Word has length 227 [2022-01-18 11:01:02,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:02,072 INFO L470 AbstractCegarLoop]: Abstraction has 15524 states and 42838 transitions. [2022-01-18 11:01:02,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,072 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 42838 transitions. [2022-01-18 11:01:02,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:02,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:02,093 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:02,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 11:01:02,093 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash -122403683, now seen corresponding path program 19 times [2022-01-18 11:01:02,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:02,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784816713] [2022-01-18 11:01:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:02,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:02,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:02,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784816713] [2022-01-18 11:01:02,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784816713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:02,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:02,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:02,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070144164] [2022-01-18 11:01:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:02,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:02,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:02,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:02,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:02,200 INFO L87 Difference]: Start difference. First operand 15524 states and 42838 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:02,413 INFO L93 Difference]: Finished difference Result 15891 states and 43707 transitions. [2022-01-18 11:01:02,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:01:02,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:02,442 INFO L225 Difference]: With dead ends: 15891 [2022-01-18 11:01:02,442 INFO L226 Difference]: Without dead ends: 15700 [2022-01-18 11:01:02,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:01:02,443 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 139 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:02,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 2145 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2022-01-18 11:01:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15492. [2022-01-18 11:01:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15491 states have (on average 2.759666903363243) internal successors, (42750), 15491 states have internal predecessors, (42750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 42750 transitions. [2022-01-18 11:01:02,682 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 42750 transitions. Word has length 227 [2022-01-18 11:01:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:02,682 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 42750 transitions. [2022-01-18 11:01:02,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 42750 transitions. [2022-01-18 11:01:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:02,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:02,704 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:02,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 11:01:02,704 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:02,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1310251565, now seen corresponding path program 20 times [2022-01-18 11:01:02,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:02,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467756659] [2022-01-18 11:01:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:02,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:02,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:02,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467756659] [2022-01-18 11:01:02,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467756659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:02,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:02,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:02,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094441640] [2022-01-18 11:01:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:02,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:02,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:02,811 INFO L87 Difference]: Start difference. First operand 15492 states and 42750 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:03,013 INFO L93 Difference]: Finished difference Result 15775 states and 43416 transitions. [2022-01-18 11:01:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:03,041 INFO L225 Difference]: With dead ends: 15775 [2022-01-18 11:01:03,041 INFO L226 Difference]: Without dead ends: 15564 [2022-01-18 11:01:03,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:01:03,042 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 119 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:03,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1904 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2022-01-18 11:01:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15452. [2022-01-18 11:01:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 15451 states have (on average 2.7617629926865574) internal successors, (42672), 15451 states have internal predecessors, (42672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 42672 transitions. [2022-01-18 11:01:03,279 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 42672 transitions. Word has length 227 [2022-01-18 11:01:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:03,279 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 42672 transitions. [2022-01-18 11:01:03,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 42672 transitions. [2022-01-18 11:01:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:03,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:03,302 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:03,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 11:01:03,302 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:03,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 521564985, now seen corresponding path program 21 times [2022-01-18 11:01:03,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:03,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257749998] [2022-01-18 11:01:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:03,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:03,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:03,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257749998] [2022-01-18 11:01:03,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257749998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:03,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:03,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:03,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346513119] [2022-01-18 11:01:03,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:03,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:03,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:03,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:03,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:03,415 INFO L87 Difference]: Start difference. First operand 15452 states and 42672 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:03,722 INFO L93 Difference]: Finished difference Result 16029 states and 44083 transitions. [2022-01-18 11:01:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:01:03,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:03,749 INFO L225 Difference]: With dead ends: 16029 [2022-01-18 11:01:03,749 INFO L226 Difference]: Without dead ends: 15882 [2022-01-18 11:01:03,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:01:03,750 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 208 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:03,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2141 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2022-01-18 11:01:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 15693. [2022-01-18 11:01:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.759941371399439) internal successors, (43309), 15692 states have internal predecessors, (43309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43309 transitions. [2022-01-18 11:01:04,031 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43309 transitions. Word has length 227 [2022-01-18 11:01:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:04,032 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43309 transitions. [2022-01-18 11:01:04,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43309 transitions. [2022-01-18 11:01:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:04,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:04,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:04,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 11:01:04,057 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:04,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash -567155761, now seen corresponding path program 22 times [2022-01-18 11:01:04,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:04,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522780550] [2022-01-18 11:01:04,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:04,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:04,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522780550] [2022-01-18 11:01:04,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522780550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:04,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:04,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:04,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911460909] [2022-01-18 11:01:04,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:04,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:04,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:04,161 INFO L87 Difference]: Start difference. First operand 15693 states and 43309 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:04,425 INFO L93 Difference]: Finished difference Result 16053 states and 44099 transitions. [2022-01-18 11:01:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:01:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:04,451 INFO L225 Difference]: With dead ends: 16053 [2022-01-18 11:01:04,451 INFO L226 Difference]: Without dead ends: 15626 [2022-01-18 11:01:04,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:04,452 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 210 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:04,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2134 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-01-18 11:01:04,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15437. [2022-01-18 11:01:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.760106245141228) internal successors, (42605), 15436 states have internal predecessors, (42605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42605 transitions. [2022-01-18 11:01:04,693 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42605 transitions. Word has length 227 [2022-01-18 11:01:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:04,693 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42605 transitions. [2022-01-18 11:01:04,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42605 transitions. [2022-01-18 11:01:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:04,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:04,714 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:04,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 11:01:04,715 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1845779575, now seen corresponding path program 23 times [2022-01-18 11:01:04,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:04,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457140279] [2022-01-18 11:01:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:04,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:04,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:04,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457140279] [2022-01-18 11:01:04,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457140279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:04,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:04,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:04,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239257034] [2022-01-18 11:01:04,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:04,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:04,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:04,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:04,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:04,809 INFO L87 Difference]: Start difference. First operand 15437 states and 42605 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:05,006 INFO L93 Difference]: Finished difference Result 15623 states and 43016 transitions. [2022-01-18 11:01:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:05,006 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:05,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:05,035 INFO L225 Difference]: With dead ends: 15623 [2022-01-18 11:01:05,035 INFO L226 Difference]: Without dead ends: 15405 [2022-01-18 11:01:05,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:01:05,036 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 150 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:05,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1697 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2022-01-18 11:01:05,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 15405. [2022-01-18 11:01:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15405 states, 15404 states have (on average 2.7619449493638015) internal successors, (42545), 15404 states have internal predecessors, (42545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15405 states to 15405 states and 42545 transitions. [2022-01-18 11:01:05,258 INFO L78 Accepts]: Start accepts. Automaton has 15405 states and 42545 transitions. Word has length 227 [2022-01-18 11:01:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:05,258 INFO L470 AbstractCegarLoop]: Abstraction has 15405 states and 42545 transitions. [2022-01-18 11:01:05,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,258 INFO L276 IsEmpty]: Start isEmpty. Operand 15405 states and 42545 transitions. [2022-01-18 11:01:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:05,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:05,278 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:05,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 11:01:05,279 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash -599420217, now seen corresponding path program 24 times [2022-01-18 11:01:05,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949037115] [2022-01-18 11:01:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:05,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:05,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:05,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949037115] [2022-01-18 11:01:05,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949037115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:05,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:05,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:05,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988433203] [2022-01-18 11:01:05,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:05,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:05,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:05,382 INFO L87 Difference]: Start difference. First operand 15405 states and 42545 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:05,665 INFO L93 Difference]: Finished difference Result 16176 states and 44404 transitions. [2022-01-18 11:01:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:01:05,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:05,694 INFO L225 Difference]: With dead ends: 16176 [2022-01-18 11:01:05,695 INFO L226 Difference]: Without dead ends: 16029 [2022-01-18 11:01:05,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:05,695 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 216 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:05,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2634 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16029 states. [2022-01-18 11:01:05,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16029 to 15693. [2022-01-18 11:01:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.7596864644404793) internal successors, (43305), 15692 states have internal predecessors, (43305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43305 transitions. [2022-01-18 11:01:05,947 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43305 transitions. Word has length 227 [2022-01-18 11:01:05,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:05,947 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43305 transitions. [2022-01-18 11:01:05,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43305 transitions. [2022-01-18 11:01:05,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:05,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:05,968 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:05,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 11:01:05,968 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:05,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:05,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1688140963, now seen corresponding path program 25 times [2022-01-18 11:01:05,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:05,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431888490] [2022-01-18 11:01:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:05,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:06,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:06,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431888490] [2022-01-18 11:01:06,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431888490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:06,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:06,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:06,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621367324] [2022-01-18 11:01:06,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:06,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:06,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:06,062 INFO L87 Difference]: Start difference. First operand 15693 states and 43305 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:06,335 INFO L93 Difference]: Finished difference Result 16026 states and 44041 transitions. [2022-01-18 11:01:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:01:06,336 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:06,364 INFO L225 Difference]: With dead ends: 16026 [2022-01-18 11:01:06,364 INFO L226 Difference]: Without dead ends: 15599 [2022-01-18 11:01:06,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:06,365 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 200 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:06,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2216 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2022-01-18 11:01:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15437. [2022-01-18 11:01:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.7598471106504276) internal successors, (42601), 15436 states have internal predecessors, (42601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42601 transitions. [2022-01-18 11:01:06,608 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42601 transitions. Word has length 227 [2022-01-18 11:01:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:06,608 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42601 transitions. [2022-01-18 11:01:06,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,608 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42601 transitions. [2022-01-18 11:01:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:06,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:06,630 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:06,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 11:01:06,630 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2077121599, now seen corresponding path program 26 times [2022-01-18 11:01:06,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:06,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102519285] [2022-01-18 11:01:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:06,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:06,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:06,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102519285] [2022-01-18 11:01:06,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102519285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:06,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:06,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:06,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994787155] [2022-01-18 11:01:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:06,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:06,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:06,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:06,733 INFO L87 Difference]: Start difference. First operand 15437 states and 42601 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:06,974 INFO L93 Difference]: Finished difference Result 15596 states and 42958 transitions. [2022-01-18 11:01:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:01:06,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:06,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:07,001 INFO L225 Difference]: With dead ends: 15596 [2022-01-18 11:01:07,001 INFO L226 Difference]: Without dead ends: 15401 [2022-01-18 11:01:07,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:01:07,001 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:07,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2331 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-01-18 11:01:07,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15401. [2022-01-18 11:01:07,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15401 states, 15400 states have (on average 2.761948051948052) internal successors, (42534), 15400 states have internal predecessors, (42534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 42534 transitions. [2022-01-18 11:01:07,231 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 42534 transitions. Word has length 227 [2022-01-18 11:01:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:07,232 INFO L470 AbstractCegarLoop]: Abstraction has 15401 states and 42534 transitions. [2022-01-18 11:01:07,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 42534 transitions. [2022-01-18 11:01:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:07,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:07,255 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:07,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 11:01:07,255 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash -374600859, now seen corresponding path program 27 times [2022-01-18 11:01:07,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:07,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016429039] [2022-01-18 11:01:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:07,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:07,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016429039] [2022-01-18 11:01:07,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016429039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:07,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:07,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:07,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540500946] [2022-01-18 11:01:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:07,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:07,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:07,358 INFO L87 Difference]: Start difference. First operand 15401 states and 42534 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:07,680 INFO L93 Difference]: Finished difference Result 16216 states and 44510 transitions. [2022-01-18 11:01:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:01:07,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:07,709 INFO L225 Difference]: With dead ends: 16216 [2022-01-18 11:01:07,709 INFO L226 Difference]: Without dead ends: 16069 [2022-01-18 11:01:07,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:01:07,710 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 249 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:07,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2674 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2022-01-18 11:01:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 15721. [2022-01-18 11:01:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15721 states, 15720 states have (on average 2.759669211195929) internal successors, (43382), 15720 states have internal predecessors, (43382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 43382 transitions. [2022-01-18 11:01:07,963 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 43382 transitions. Word has length 227 [2022-01-18 11:01:07,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:07,963 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 43382 transitions. [2022-01-18 11:01:07,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 43382 transitions. [2022-01-18 11:01:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:07,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:07,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:07,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 11:01:07,986 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1463321605, now seen corresponding path program 28 times [2022-01-18 11:01:07,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:07,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703180531] [2022-01-18 11:01:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:07,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:08,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:08,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703180531] [2022-01-18 11:01:08,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703180531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:08,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:08,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:08,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781583199] [2022-01-18 11:01:08,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:08,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:08,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:08,083 INFO L87 Difference]: Start difference. First operand 15721 states and 43382 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:08,364 INFO L93 Difference]: Finished difference Result 16066 states and 44147 transitions. [2022-01-18 11:01:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:01:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:08,388 INFO L225 Difference]: With dead ends: 16066 [2022-01-18 11:01:08,389 INFO L226 Difference]: Without dead ends: 15639 [2022-01-18 11:01:08,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:01:08,389 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 226 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:08,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2679 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2022-01-18 11:01:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15465. [2022-01-18 11:01:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15465 states, 15464 states have (on average 2.759829280910502) internal successors, (42678), 15464 states have internal predecessors, (42678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15465 states to 15465 states and 42678 transitions. [2022-01-18 11:01:08,604 INFO L78 Accepts]: Start accepts. Automaton has 15465 states and 42678 transitions. Word has length 227 [2022-01-18 11:01:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:08,604 INFO L470 AbstractCegarLoop]: Abstraction has 15465 states and 42678 transitions. [2022-01-18 11:01:08,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 15465 states and 42678 transitions. [2022-01-18 11:01:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:08,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:08,626 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:08,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 11:01:08,626 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:08,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:08,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1993026339, now seen corresponding path program 29 times [2022-01-18 11:01:08,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:08,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439940107] [2022-01-18 11:01:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:08,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:08,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439940107] [2022-01-18 11:01:08,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439940107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:08,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:08,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:08,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313024214] [2022-01-18 11:01:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:08,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:08,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:08,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:08,741 INFO L87 Difference]: Start difference. First operand 15465 states and 42678 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:08,973 INFO L93 Difference]: Finished difference Result 15720 states and 43267 transitions. [2022-01-18 11:01:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:01:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:08,998 INFO L225 Difference]: With dead ends: 15720 [2022-01-18 11:01:08,999 INFO L226 Difference]: Without dead ends: 15529 [2022-01-18 11:01:08,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:01:08,999 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 149 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:08,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 2377 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:09,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2022-01-18 11:01:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 15433. [2022-01-18 11:01:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15433 states, 15432 states have (on average 2.7598496630378433) internal successors, (42590), 15432 states have internal predecessors, (42590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 42590 transitions. [2022-01-18 11:01:09,209 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 42590 transitions. Word has length 227 [2022-01-18 11:01:09,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:09,209 INFO L470 AbstractCegarLoop]: Abstraction has 15433 states and 42590 transitions. [2022-01-18 11:01:09,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 42590 transitions. [2022-01-18 11:01:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:09,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:09,230 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:09,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 11:01:09,230 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:09,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash -560371091, now seen corresponding path program 30 times [2022-01-18 11:01:09,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:09,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415800916] [2022-01-18 11:01:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:09,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:09,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:09,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415800916] [2022-01-18 11:01:09,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415800916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:09,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:09,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:09,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456801988] [2022-01-18 11:01:09,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:09,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:09,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:09,338 INFO L87 Difference]: Start difference. First operand 15433 states and 42590 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:09,565 INFO L93 Difference]: Finished difference Result 15604 states and 42976 transitions. [2022-01-18 11:01:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:09,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:09,592 INFO L225 Difference]: With dead ends: 15604 [2022-01-18 11:01:09,592 INFO L226 Difference]: Without dead ends: 15397 [2022-01-18 11:01:09,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:01:09,592 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 129 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:09,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 2538 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:09,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2022-01-18 11:01:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15397. [2022-01-18 11:01:09,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15397 states, 15396 states have (on average 2.761951156144453) internal successors, (42523), 15396 states have internal predecessors, (42523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 42523 transitions. [2022-01-18 11:01:09,826 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 42523 transitions. Word has length 227 [2022-01-18 11:01:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:09,826 INFO L470 AbstractCegarLoop]: Abstraction has 15397 states and 42523 transitions. [2022-01-18 11:01:09,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 42523 transitions. [2022-01-18 11:01:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:09,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:09,847 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:09,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 11:01:09,847 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:09,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash 875777767, now seen corresponding path program 31 times [2022-01-18 11:01:09,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:09,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432619063] [2022-01-18 11:01:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:09,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:09,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:09,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432619063] [2022-01-18 11:01:09,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432619063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:09,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:09,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:09,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217356016] [2022-01-18 11:01:09,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:09,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:09,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:09,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:09,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:09,983 INFO L87 Difference]: Start difference. First operand 15397 states and 42523 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:10,295 INFO L93 Difference]: Finished difference Result 15456 states and 41855 transitions. [2022-01-18 11:01:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:01:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:10,320 INFO L225 Difference]: With dead ends: 15456 [2022-01-18 11:01:10,320 INFO L226 Difference]: Without dead ends: 15309 [2022-01-18 11:01:10,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:01:10,320 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 350 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:10,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2429 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15309 states. [2022-01-18 11:01:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15309 to 13797. [2022-01-18 11:01:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 13796 states have (on average 2.7399246158306756) internal successors, (37800), 13796 states have internal predecessors, (37800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 37800 transitions. [2022-01-18 11:01:10,527 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 37800 transitions. Word has length 227 [2022-01-18 11:01:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:10,528 INFO L470 AbstractCegarLoop]: Abstraction has 13797 states and 37800 transitions. [2022-01-18 11:01:10,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 37800 transitions. [2022-01-18 11:01:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:10,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:10,548 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:10,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 11:01:10,548 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash -212942979, now seen corresponding path program 32 times [2022-01-18 11:01:10,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:10,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776341391] [2022-01-18 11:01:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:10,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:10,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:10,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776341391] [2022-01-18 11:01:10,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776341391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:10,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:10,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:10,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338073009] [2022-01-18 11:01:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:10,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:10,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:10,639 INFO L87 Difference]: Start difference. First operand 13797 states and 37800 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:10,913 INFO L93 Difference]: Finished difference Result 15135 states and 41078 transitions. [2022-01-18 11:01:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:01:10,913 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:10,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:10,936 INFO L225 Difference]: With dead ends: 15135 [2022-01-18 11:01:10,937 INFO L226 Difference]: Without dead ends: 14708 [2022-01-18 11:01:10,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:01:10,937 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 364 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:10,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2036 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:10,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2022-01-18 11:01:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 13541. [2022-01-18 11:01:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13541 states, 13540 states have (on average 2.7397341211226) internal successors, (37096), 13540 states have internal predecessors, (37096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 37096 transitions. [2022-01-18 11:01:11,137 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 37096 transitions. Word has length 227 [2022-01-18 11:01:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:11,137 INFO L470 AbstractCegarLoop]: Abstraction has 13541 states and 37096 transitions. [2022-01-18 11:01:11,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 37096 transitions. [2022-01-18 11:01:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:11,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:11,156 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:11,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 11:01:11,157 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1861767551, now seen corresponding path program 33 times [2022-01-18 11:01:11,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:11,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32856599] [2022-01-18 11:01:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:11,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:11,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:11,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32856599] [2022-01-18 11:01:11,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32856599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:11,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:11,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:11,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41949034] [2022-01-18 11:01:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:11,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:11,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:11,273 INFO L87 Difference]: Start difference. First operand 13541 states and 37096 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:11,528 INFO L93 Difference]: Finished difference Result 14789 states and 40198 transitions. [2022-01-18 11:01:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:01:11,528 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:11,551 INFO L225 Difference]: With dead ends: 14789 [2022-01-18 11:01:11,552 INFO L226 Difference]: Without dead ends: 14598 [2022-01-18 11:01:11,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:11,552 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 246 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:11,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2418 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-01-18 11:01:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 13509. [2022-01-18 11:01:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13509 states, 13508 states have (on average 2.7397098015990524) internal successors, (37008), 13508 states have internal predecessors, (37008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 37008 transitions. [2022-01-18 11:01:11,751 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 37008 transitions. Word has length 227 [2022-01-18 11:01:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:11,752 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 37008 transitions. [2022-01-18 11:01:11,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 37008 transitions. [2022-01-18 11:01:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:11,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:11,770 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:11,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 11:01:11,771 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:11,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:11,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1719428251, now seen corresponding path program 34 times [2022-01-18 11:01:11,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:11,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715103450] [2022-01-18 11:01:11,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:11,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:11,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:11,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715103450] [2022-01-18 11:01:11,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715103450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:11,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:11,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:11,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570835546] [2022-01-18 11:01:11,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:11,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:11,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:11,884 INFO L87 Difference]: Start difference. First operand 13509 states and 37008 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:12,144 INFO L93 Difference]: Finished difference Result 14769 states and 40139 transitions. [2022-01-18 11:01:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:01:12,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:12,168 INFO L225 Difference]: With dead ends: 14769 [2022-01-18 11:01:12,169 INFO L226 Difference]: Without dead ends: 14566 [2022-01-18 11:01:12,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:01:12,169 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 234 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:12,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2791 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2022-01-18 11:01:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 13477. [2022-01-18 11:01:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13477 states, 13476 states have (on average 2.7396853665776195) internal successors, (36920), 13476 states have internal predecessors, (36920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 36920 transitions. [2022-01-18 11:01:12,384 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 36920 transitions. Word has length 227 [2022-01-18 11:01:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:12,384 INFO L470 AbstractCegarLoop]: Abstraction has 13477 states and 36920 transitions. [2022-01-18 11:01:12,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 36920 transitions. [2022-01-18 11:01:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:12,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:12,404 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:12,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 11:01:12,405 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1870981163, now seen corresponding path program 35 times [2022-01-18 11:01:12,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:12,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860547377] [2022-01-18 11:01:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:12,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:12,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:12,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860547377] [2022-01-18 11:01:12,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860547377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:12,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:12,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:01:12,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665293023] [2022-01-18 11:01:12,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:12,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:01:12,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:01:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:12,509 INFO L87 Difference]: Start difference. First operand 13477 states and 36920 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:12,734 INFO L93 Difference]: Finished difference Result 14641 states and 39819 transitions. [2022-01-18 11:01:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:12,735 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:12,758 INFO L225 Difference]: With dead ends: 14641 [2022-01-18 11:01:12,758 INFO L226 Difference]: Without dead ends: 14418 [2022-01-18 11:01:12,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:01:12,759 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 258 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:12,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2440 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14418 states. [2022-01-18 11:01:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14418 to 13785. [2022-01-18 11:01:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 13784 states have (on average 2.7338218224027857) internal successors, (37683), 13784 states have internal predecessors, (37683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 37683 transitions. [2022-01-18 11:01:12,969 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 37683 transitions. Word has length 227 [2022-01-18 11:01:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:12,969 INFO L470 AbstractCegarLoop]: Abstraction has 13785 states and 37683 transitions. [2022-01-18 11:01:12,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 37683 transitions. [2022-01-18 11:01:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-18 11:01:12,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:12,989 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:12,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 11:01:12,989 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:12,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1267834919, now seen corresponding path program 1 times [2022-01-18 11:01:12,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:12,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710368807] [2022-01-18 11:01:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:12,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:13,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:13,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710368807] [2022-01-18 11:01:13,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710368807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:13,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:13,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:01:13,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671688245] [2022-01-18 11:01:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:13,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:01:13,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:01:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:01:13,021 INFO L87 Difference]: Start difference. First operand 13785 states and 37683 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:13,108 INFO L93 Difference]: Finished difference Result 16699 states and 45640 transitions. [2022-01-18 11:01:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:01:13,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-18 11:01:13,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:13,137 INFO L225 Difference]: With dead ends: 16699 [2022-01-18 11:01:13,137 INFO L226 Difference]: Without dead ends: 16699 [2022-01-18 11:01:13,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:01:13,137 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 179 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:13,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1177 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:01:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16699 states. [2022-01-18 11:01:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16699 to 13663. [2022-01-18 11:01:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13663 states, 13662 states have (on average 2.7154150197628457) internal successors, (37098), 13662 states have internal predecessors, (37098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 37098 transitions. [2022-01-18 11:01:13,398 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 37098 transitions. Word has length 227 [2022-01-18 11:01:13,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:13,398 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 37098 transitions. [2022-01-18 11:01:13,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 37098 transitions. [2022-01-18 11:01:13,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-01-18 11:01:13,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:13,417 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:13,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 11:01:13,417 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:13,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash 501455919, now seen corresponding path program 1 times [2022-01-18 11:01:13,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:13,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069279409] [2022-01-18 11:01:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:13,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:13,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:13,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069279409] [2022-01-18 11:01:13,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069279409] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:01:13,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394961180] [2022-01-18 11:01:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:13,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:01:13,460 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:01:13,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 11:01:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:13,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-18 11:01:13,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:01:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:13,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:01:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:14,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394961180] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:01:14,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:01:14,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-01-18 11:01:14,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69978705] [2022-01-18 11:01:14,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:01:14,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:01:14,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:14,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:01:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:01:14,280 INFO L87 Difference]: Start difference. First operand 13663 states and 37098 transitions. Second operand has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:14,466 INFO L93 Difference]: Finished difference Result 31225 states and 85401 transitions. [2022-01-18 11:01:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:01:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-01-18 11:01:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:14,520 INFO L225 Difference]: With dead ends: 31225 [2022-01-18 11:01:14,520 INFO L226 Difference]: Without dead ends: 31225 [2022-01-18 11:01:14,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:01:14,521 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1010 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:14,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 1463 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2022-01-18 11:01:14,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 23355. [2022-01-18 11:01:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23355 states, 23354 states have (on average 2.748865290742485) internal successors, (64197), 23354 states have internal predecessors, (64197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 64197 transitions. [2022-01-18 11:01:14,964 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 64197 transitions. Word has length 230 [2022-01-18 11:01:14,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:14,965 INFO L470 AbstractCegarLoop]: Abstraction has 23355 states and 64197 transitions. [2022-01-18 11:01:14,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 64197 transitions. [2022-01-18 11:01:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-01-18 11:01:14,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:14,989 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:15,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 11:01:15,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2022-01-18 11:01:15,190 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:15,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:15,190 INFO L85 PathProgramCache]: Analyzing trace with hash -563810257, now seen corresponding path program 1 times [2022-01-18 11:01:15,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:15,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625527370] [2022-01-18 11:01:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:15,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:15,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:15,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625527370] [2022-01-18 11:01:15,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625527370] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:01:15,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202716156] [2022-01-18 11:01:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:15,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:01:15,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:01:15,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 11:01:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:15,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-18 11:01:15,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:01:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:15,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:01:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:16,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202716156] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:01:16,201 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:01:16,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-01-18 11:01:16,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021684085] [2022-01-18 11:01:16,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:01:16,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 11:01:16,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 11:01:16,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:01:16,202 INFO L87 Difference]: Start difference. First operand 23355 states and 64197 transitions. Second operand has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:16,503 INFO L93 Difference]: Finished difference Result 56701 states and 156233 transitions. [2022-01-18 11:01:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:01:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-01-18 11:01:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:16,628 INFO L225 Difference]: With dead ends: 56701 [2022-01-18 11:01:16,628 INFO L226 Difference]: Without dead ends: 56701 [2022-01-18 11:01:16,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:01:16,628 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 828 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:16,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1886 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:16,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56701 states. [2022-01-18 11:01:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56701 to 39273. [2022-01-18 11:01:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.7951466693827665) internal successors, (109771), 39272 states have internal predecessors, (109771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109771 transitions. [2022-01-18 11:01:17,639 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109771 transitions. Word has length 230 [2022-01-18 11:01:17,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:17,640 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109771 transitions. [2022-01-18 11:01:17,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109771 transitions. [2022-01-18 11:01:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:17,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:17,672 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:17,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 11:01:17,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2022-01-18 11:01:17,873 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1435683988, now seen corresponding path program 1 times [2022-01-18 11:01:17,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:17,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065316295] [2022-01-18 11:01:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:17,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:18,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:18,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065316295] [2022-01-18 11:01:18,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065316295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:18,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:18,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:01:18,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118017881] [2022-01-18 11:01:18,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:18,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:01:18,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:18,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:01:18,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:01:18,460 INFO L87 Difference]: Start difference. First operand 39273 states and 109771 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:22,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:22,609 INFO L93 Difference]: Finished difference Result 51026 states and 140942 transitions. [2022-01-18 11:01:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 11:01:22,609 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:01:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:22,716 INFO L225 Difference]: With dead ends: 51026 [2022-01-18 11:01:22,716 INFO L226 Difference]: Without dead ends: 50234 [2022-01-18 11:01:22,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3009 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2303, Invalid=9687, Unknown=0, NotChecked=0, Total=11990 [2022-01-18 11:01:22,718 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 2434 mSDsluCounter, 9869 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 10381 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:22,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2434 Valid, 10381 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:01:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50234 states. [2022-01-18 11:01:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50234 to 39273. [2022-01-18 11:01:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.794892035037686) internal successors, (109761), 39272 states have internal predecessors, (109761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109761 transitions. [2022-01-18 11:01:23,675 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109761 transitions. Word has length 231 [2022-01-18 11:01:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:23,676 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109761 transitions. [2022-01-18 11:01:23,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109761 transitions. [2022-01-18 11:01:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:23,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:23,886 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:23,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 11:01:23,886 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash 766716600, now seen corresponding path program 2 times [2022-01-18 11:01:23,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:23,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47540242] [2022-01-18 11:01:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:23,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:24,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:24,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47540242] [2022-01-18 11:01:24,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47540242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:24,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:24,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:01:24,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708587065] [2022-01-18 11:01:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:24,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:01:24,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:01:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:01:24,469 INFO L87 Difference]: Start difference. First operand 39273 states and 109761 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:30,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:30,597 INFO L93 Difference]: Finished difference Result 54465 states and 150546 transitions. [2022-01-18 11:01:30,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-01-18 11:01:30,598 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:01:30,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:30,706 INFO L225 Difference]: With dead ends: 54465 [2022-01-18 11:01:30,706 INFO L226 Difference]: Without dead ends: 53816 [2022-01-18 11:01:30,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5263 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3625, Invalid=15007, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 11:01:30,708 INFO L933 BasicCegarLoop]: 766 mSDtfsCounter, 2456 mSDsluCounter, 9885 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 10403 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:30,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2456 Valid, 10403 Invalid, 3389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3370 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:01:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53816 states. [2022-01-18 11:01:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53816 to 39616. [2022-01-18 11:01:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39616 states, 39615 states have (on average 2.794118389498927) internal successors, (110689), 39615 states have internal predecessors, (110689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 110689 transitions. [2022-01-18 11:01:31,510 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 110689 transitions. Word has length 231 [2022-01-18 11:01:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:31,510 INFO L470 AbstractCegarLoop]: Abstraction has 39616 states and 110689 transitions. [2022-01-18 11:01:31,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 110689 transitions. [2022-01-18 11:01:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:31,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:31,549 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:31,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 11:01:31,550 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1454566740, now seen corresponding path program 3 times [2022-01-18 11:01:31,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:31,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253728138] [2022-01-18 11:01:31,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:31,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:32,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:32,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253728138] [2022-01-18 11:01:32,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253728138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:32,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:32,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:01:32,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615697352] [2022-01-18 11:01:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:32,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:01:32,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:32,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:01:32,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:01:32,248 INFO L87 Difference]: Start difference. First operand 39616 states and 110689 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:38,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:38,838 INFO L93 Difference]: Finished difference Result 67360 states and 185691 transitions. [2022-01-18 11:01:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-01-18 11:01:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:01:38,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:38,985 INFO L225 Difference]: With dead ends: 67360 [2022-01-18 11:01:38,985 INFO L226 Difference]: Without dead ends: 67360 [2022-01-18 11:01:38,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4835 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3572, Invalid=14250, Unknown=0, NotChecked=0, Total=17822 [2022-01-18 11:01:38,986 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 2596 mSDsluCounter, 8239 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 8793 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:38,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 8793 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:01:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67360 states. [2022-01-18 11:01:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67360 to 39680. [2022-01-18 11:01:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:39,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-01-18 11:01:39,940 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-01-18 11:01:39,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:39,940 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-01-18 11:01:39,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:39,940 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-01-18 11:01:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:39,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:39,979 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:39,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 11:01:39,979 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:39,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1020096502, now seen corresponding path program 4 times [2022-01-18 11:01:39,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:39,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620541032] [2022-01-18 11:01:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:39,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:40,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:40,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620541032] [2022-01-18 11:01:40,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620541032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:40,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:40,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:01:40,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198894158] [2022-01-18 11:01:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:40,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:01:40,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:01:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:01:40,669 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:46,808 INFO L93 Difference]: Finished difference Result 52998 states and 146732 transitions. [2022-01-18 11:01:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-01-18 11:01:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:01:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:46,925 INFO L225 Difference]: With dead ends: 52998 [2022-01-18 11:01:46,925 INFO L226 Difference]: Without dead ends: 52998 [2022-01-18 11:01:46,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3332, Invalid=12418, Unknown=0, NotChecked=0, Total=15750 [2022-01-18 11:01:46,926 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 2346 mSDsluCounter, 9428 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 9967 SdHoareTripleChecker+Invalid, 3471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:46,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2346 Valid, 9967 Invalid, 3471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:01:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2022-01-18 11:01:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 39680. [2022-01-18 11:01:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-01-18 11:01:47,791 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-01-18 11:01:47,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:47,791 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-01-18 11:01:47,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:47,791 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-01-18 11:01:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:47,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:47,952 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:47,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 11:01:47,952 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:47,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:47,952 INFO L85 PathProgramCache]: Analyzing trace with hash -773984514, now seen corresponding path program 5 times [2022-01-18 11:01:47,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:47,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060648035] [2022-01-18 11:01:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:47,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:48,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060648035] [2022-01-18 11:01:48,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060648035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:48,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:48,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:01:48,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951248128] [2022-01-18 11:01:48,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:48,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:01:48,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:01:48,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:01:48,509 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:55,556 INFO L93 Difference]: Finished difference Result 53081 states and 146904 transitions. [2022-01-18 11:01:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-01-18 11:01:55,556 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:01:55,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:55,668 INFO L225 Difference]: With dead ends: 53081 [2022-01-18 11:01:55,668 INFO L226 Difference]: Without dead ends: 53081 [2022-01-18 11:01:55,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5625 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4175, Invalid=15565, Unknown=0, NotChecked=0, Total=19740 [2022-01-18 11:01:55,670 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 2464 mSDsluCounter, 9698 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 10265 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:55,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2464 Valid, 10265 Invalid, 3649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:01:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53081 states. [2022-01-18 11:01:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53081 to 39680. [2022-01-18 11:01:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:56,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-01-18 11:01:56,718 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-01-18 11:01:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:56,718 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-01-18 11:01:56,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:56,718 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-01-18 11:01:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:01:56,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:56,755 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:01:56,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 11:01:56,756 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash -430937490, now seen corresponding path program 6 times [2022-01-18 11:01:56,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:56,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51594423] [2022-01-18 11:01:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:56,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:57,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:57,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51594423] [2022-01-18 11:01:57,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51594423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:57,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:57,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:01:57,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350358751] [2022-01-18 11:01:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:57,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:01:57,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:01:57,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:01:57,230 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:02,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:02,646 INFO L93 Difference]: Finished difference Result 57004 states and 157565 transitions. [2022-01-18 11:02:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-01-18 11:02:02,646 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:02,760 INFO L225 Difference]: With dead ends: 57004 [2022-01-18 11:02:02,761 INFO L226 Difference]: Without dead ends: 56355 [2022-01-18 11:02:02,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5353 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3656, Invalid=14704, Unknown=0, NotChecked=0, Total=18360 [2022-01-18 11:02:02,762 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2405 mSDsluCounter, 8568 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 9067 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:02,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 9067 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:02:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2022-01-18 11:02:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 39776. [2022-01-18 11:02:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39776 states, 39775 states have (on average 2.794644877435575) internal successors, (111157), 39775 states have internal predecessors, (111157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39776 states to 39776 states and 111157 transitions. [2022-01-18 11:02:03,612 INFO L78 Accepts]: Start accepts. Automaton has 39776 states and 111157 transitions. Word has length 231 [2022-01-18 11:02:03,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:03,612 INFO L470 AbstractCegarLoop]: Abstraction has 39776 states and 111157 transitions. [2022-01-18 11:02:03,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 39776 states and 111157 transitions. [2022-01-18 11:02:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:03,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:03,652 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:03,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 11:02:03,652 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash 256912650, now seen corresponding path program 7 times [2022-01-18 11:02:03,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:03,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249623945] [2022-01-18 11:02:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:03,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:04,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:04,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249623945] [2022-01-18 11:02:04,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249623945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:04,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:04,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:02:04,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030619893] [2022-01-18 11:02:04,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:04,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:02:04,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:04,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:02:04,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:02:04,242 INFO L87 Difference]: Start difference. First operand 39776 states and 111157 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:10,754 INFO L93 Difference]: Finished difference Result 73152 states and 201939 transitions. [2022-01-18 11:02:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-01-18 11:02:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:10,903 INFO L225 Difference]: With dead ends: 73152 [2022-01-18 11:02:10,904 INFO L226 Difference]: Without dead ends: 73152 [2022-01-18 11:02:10,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6265 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4325, Invalid=16845, Unknown=0, NotChecked=0, Total=21170 [2022-01-18 11:02:10,905 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 2370 mSDsluCounter, 9006 mSDsCounter, 0 mSdLazyCounter, 3398 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 9507 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:10,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 9507 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3398 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:02:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73152 states. [2022-01-18 11:02:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73152 to 39784. [2022-01-18 11:02:11,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39784 states, 39783 states have (on average 2.7949375361335242) internal successors, (111191), 39783 states have internal predecessors, (111191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:11,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 111191 transitions. [2022-01-18 11:02:11,894 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 111191 transitions. Word has length 231 [2022-01-18 11:02:11,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:11,894 INFO L470 AbstractCegarLoop]: Abstraction has 39784 states and 111191 transitions. [2022-01-18 11:02:11,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:11,895 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 111191 transitions. [2022-01-18 11:02:11,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:11,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:11,932 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:11,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 11:02:11,933 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:11,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2077216704, now seen corresponding path program 8 times [2022-01-18 11:02:11,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:11,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731442868] [2022-01-18 11:02:11,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:11,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:12,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:12,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731442868] [2022-01-18 11:02:12,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731442868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:12,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:12,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:12,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644961933] [2022-01-18 11:02:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:12,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:12,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:12,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:12,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:12,628 INFO L87 Difference]: Start difference. First operand 39784 states and 111191 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:20,689 INFO L93 Difference]: Finished difference Result 57442 states and 159297 transitions. [2022-01-18 11:02:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 11:02:20,689 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:20,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:20,806 INFO L225 Difference]: With dead ends: 57442 [2022-01-18 11:02:20,806 INFO L226 Difference]: Without dead ends: 57442 [2022-01-18 11:02:20,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4673, Invalid=17677, Unknown=0, NotChecked=0, Total=22350 [2022-01-18 11:02:20,808 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2274 mSDsluCounter, 10922 mSDsCounter, 0 mSdLazyCounter, 4214 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 11461 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:20,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2274 Valid, 11461 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4214 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 11:02:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57442 states. [2022-01-18 11:02:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57442 to 39780. [2022-01-18 11:02:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39780 states, 39779 states have (on average 2.79474094371402) internal successors, (111172), 39779 states have internal predecessors, (111172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39780 states to 39780 states and 111172 transitions. [2022-01-18 11:02:21,841 INFO L78 Accepts]: Start accepts. Automaton has 39780 states and 111172 transitions. Word has length 231 [2022-01-18 11:02:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:21,842 INFO L470 AbstractCegarLoop]: Abstraction has 39780 states and 111172 transitions. [2022-01-18 11:02:21,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 39780 states and 111172 transitions. [2022-01-18 11:02:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:21,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:21,878 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:21,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 11:02:21,878 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1971638604, now seen corresponding path program 9 times [2022-01-18 11:02:21,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:21,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765052262] [2022-01-18 11:02:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:21,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:22,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765052262] [2022-01-18 11:02:22,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765052262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:22,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:22,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:22,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404250935] [2022-01-18 11:02:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:22,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:22,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:22,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:22,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:22,331 INFO L87 Difference]: Start difference. First operand 39780 states and 111172 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:29,796 INFO L93 Difference]: Finished difference Result 57721 states and 159952 transitions. [2022-01-18 11:02:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-01-18 11:02:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:29,911 INFO L225 Difference]: With dead ends: 57721 [2022-01-18 11:02:29,911 INFO L226 Difference]: Without dead ends: 57721 [2022-01-18 11:02:29,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8305 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=5591, Invalid=20815, Unknown=0, NotChecked=0, Total=26406 [2022-01-18 11:02:29,913 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 2197 mSDsluCounter, 9505 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 10020 SdHoareTripleChecker+Invalid, 3496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:29,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2197 Valid, 10020 Invalid, 3496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:02:29,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57721 states. [2022-01-18 11:02:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57721 to 39728. [2022-01-18 11:02:30,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39728 states, 39727 states have (on average 2.7942960706824076) internal successors, (111009), 39727 states have internal predecessors, (111009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 111009 transitions. [2022-01-18 11:02:30,786 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 111009 transitions. Word has length 231 [2022-01-18 11:02:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:30,786 INFO L470 AbstractCegarLoop]: Abstraction has 39728 states and 111009 transitions. [2022-01-18 11:02:30,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 111009 transitions. [2022-01-18 11:02:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:30,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:30,825 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:30,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 11:02:30,825 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 533439422, now seen corresponding path program 10 times [2022-01-18 11:02:30,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:30,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296572586] [2022-01-18 11:02:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:30,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:31,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:31,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296572586] [2022-01-18 11:02:31,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296572586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:31,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:31,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:31,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542527578] [2022-01-18 11:02:31,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:31,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:31,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:31,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:31,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:31,487 INFO L87 Difference]: Start difference. First operand 39728 states and 111009 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:38,228 INFO L93 Difference]: Finished difference Result 62497 states and 172477 transitions. [2022-01-18 11:02:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-01-18 11:02:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:38,364 INFO L225 Difference]: With dead ends: 62497 [2022-01-18 11:02:38,365 INFO L226 Difference]: Without dead ends: 62025 [2022-01-18 11:02:38,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5891 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4290, Invalid=15450, Unknown=0, NotChecked=0, Total=19740 [2022-01-18 11:02:38,366 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 2204 mSDsluCounter, 7969 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 8397 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:38,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2204 Valid, 8397 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:02:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62025 states. [2022-01-18 11:02:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62025 to 39752. [2022-01-18 11:02:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39752 states, 39751 states have (on average 2.794369952957158) internal successors, (111079), 39751 states have internal predecessors, (111079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39752 states to 39752 states and 111079 transitions. [2022-01-18 11:02:39,288 INFO L78 Accepts]: Start accepts. Automaton has 39752 states and 111079 transitions. Word has length 231 [2022-01-18 11:02:39,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:39,288 INFO L470 AbstractCegarLoop]: Abstraction has 39752 states and 111079 transitions. [2022-01-18 11:02:39,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 39752 states and 111079 transitions. [2022-01-18 11:02:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:39,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:39,326 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:39,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 11:02:39,326 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:39,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:39,326 INFO L85 PathProgramCache]: Analyzing trace with hash -614085760, now seen corresponding path program 11 times [2022-01-18 11:02:39,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:39,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684900374] [2022-01-18 11:02:39,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:39,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:39,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:39,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684900374] [2022-01-18 11:02:39,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684900374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:39,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:39,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:39,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478259272] [2022-01-18 11:02:39,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:39,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:39,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:39,887 INFO L87 Difference]: Start difference. First operand 39752 states and 111079 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:47,404 INFO L93 Difference]: Finished difference Result 63469 states and 175453 transitions. [2022-01-18 11:02:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 11:02:47,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:47,532 INFO L225 Difference]: With dead ends: 63469 [2022-01-18 11:02:47,532 INFO L226 Difference]: Without dead ends: 62944 [2022-01-18 11:02:47,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7109 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5014, Invalid=17636, Unknown=0, NotChecked=0, Total=22650 [2022-01-18 11:02:47,533 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 2272 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:47,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2272 Valid, 8333 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:02:47,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62944 states. [2022-01-18 11:02:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62944 to 39808. [2022-01-18 11:02:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39808 states, 39807 states have (on average 2.79430753385083) internal successors, (111233), 39807 states have internal predecessors, (111233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39808 states to 39808 states and 111233 transitions. [2022-01-18 11:02:48,424 INFO L78 Accepts]: Start accepts. Automaton has 39808 states and 111233 transitions. Word has length 231 [2022-01-18 11:02:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:48,424 INFO L470 AbstractCegarLoop]: Abstraction has 39808 states and 111233 transitions. [2022-01-18 11:02:48,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 39808 states and 111233 transitions. [2022-01-18 11:02:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:48,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:48,462 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:48,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 11:02:48,462 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1751947262, now seen corresponding path program 12 times [2022-01-18 11:02:48,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:48,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205732723] [2022-01-18 11:02:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:48,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:49,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:49,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205732723] [2022-01-18 11:02:49,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205732723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:49,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:49,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:49,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834982659] [2022-01-18 11:02:49,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:49,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:49,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:49,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:49,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:49,035 INFO L87 Difference]: Start difference. First operand 39808 states and 111233 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:54,425 INFO L93 Difference]: Finished difference Result 75267 states and 209561 transitions. [2022-01-18 11:02:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-01-18 11:02:54,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:02:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:54,589 INFO L225 Difference]: With dead ends: 75267 [2022-01-18 11:02:54,589 INFO L226 Difference]: Without dead ends: 75267 [2022-01-18 11:02:54,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3641 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3003, Invalid=10569, Unknown=0, NotChecked=0, Total=13572 [2022-01-18 11:02:54,590 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 2078 mSDsluCounter, 7244 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 7633 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:54,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2078 Valid, 7633 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 11:02:54,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75267 states. [2022-01-18 11:02:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75267 to 39792. [2022-01-18 11:02:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-01-18 11:02:55,590 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-01-18 11:02:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:55,591 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-01-18 11:02:55,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-01-18 11:02:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:02:55,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:55,630 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:02:55,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 11:02:55,631 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:55,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:55,631 INFO L85 PathProgramCache]: Analyzing trace with hash -324715772, now seen corresponding path program 13 times [2022-01-18 11:02:55,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:55,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851039208] [2022-01-18 11:02:55,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:55,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:56,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:56,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851039208] [2022-01-18 11:02:56,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851039208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:02:56,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:02:56,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:02:56,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105356662] [2022-01-18 11:02:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:02:56,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:02:56,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:02:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:02:56,318 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:02,865 INFO L93 Difference]: Finished difference Result 69884 states and 192760 transitions. [2022-01-18 11:03:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-01-18 11:03:02,865 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:02,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:03,007 INFO L225 Difference]: With dead ends: 69884 [2022-01-18 11:03:03,008 INFO L226 Difference]: Without dead ends: 69884 [2022-01-18 11:03:03,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6349 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4334, Invalid=16546, Unknown=0, NotChecked=0, Total=20880 [2022-01-18 11:03:03,009 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 2146 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 8878 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:03,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2146 Valid, 8878 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:03:03,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69884 states. [2022-01-18 11:03:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69884 to 39796. [2022-01-18 11:03:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7944214097248397) internal successors, (111204), 39795 states have internal predecessors, (111204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:04,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111204 transitions. [2022-01-18 11:03:04,102 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111204 transitions. Word has length 231 [2022-01-18 11:03:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:04,102 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111204 transitions. [2022-01-18 11:03:04,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111204 transitions. [2022-01-18 11:03:04,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:04,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:04,141 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:04,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 11:03:04,141 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:04,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:04,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588282, now seen corresponding path program 14 times [2022-01-18 11:03:04,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:04,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558131479] [2022-01-18 11:03:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:04,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:04,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:04,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558131479] [2022-01-18 11:03:04,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558131479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:04,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:04,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:03:04,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335906014] [2022-01-18 11:03:04,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:04,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:03:04,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:03:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:04,668 INFO L87 Difference]: Start difference. First operand 39796 states and 111204 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:10,150 INFO L93 Difference]: Finished difference Result 53754 states and 148939 transitions. [2022-01-18 11:03:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-01-18 11:03:10,150 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:10,263 INFO L225 Difference]: With dead ends: 53754 [2022-01-18 11:03:10,263 INFO L226 Difference]: Without dead ends: 53754 [2022-01-18 11:03:10,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4482 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3526, Invalid=12476, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 11:03:10,264 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 2035 mSDsluCounter, 8461 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 8916 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:10,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2035 Valid, 8916 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:03:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53754 states. [2022-01-18 11:03:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53754 to 39792. [2022-01-18 11:03:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-01-18 11:03:11,111 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-01-18 11:03:11,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:11,111 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-01-18 11:03:11,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-01-18 11:03:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:11,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:11,149 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:11,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 11:03:11,150 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1109678508, now seen corresponding path program 15 times [2022-01-18 11:03:11,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:11,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887526641] [2022-01-18 11:03:11,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:11,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:11,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:11,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887526641] [2022-01-18 11:03:11,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887526641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:11,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:11,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:11,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705049245] [2022-01-18 11:03:11,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:11,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:11,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:11,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:11,645 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:19,628 INFO L93 Difference]: Finished difference Result 70136 states and 193457 transitions. [2022-01-18 11:03:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-01-18 11:03:19,628 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:19,769 INFO L225 Difference]: With dead ends: 70136 [2022-01-18 11:03:19,769 INFO L226 Difference]: Without dead ends: 70136 [2022-01-18 11:03:19,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8593 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=5525, Invalid=20881, Unknown=0, NotChecked=0, Total=26406 [2022-01-18 11:03:19,770 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 2115 mSDsluCounter, 8711 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 3569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:19,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2115 Valid, 9220 Invalid, 3569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 11:03:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70136 states. [2022-01-18 11:03:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70136 to 39800. [2022-01-18 11:03:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39800 states, 39799 states have (on average 2.7945174501871906) internal successors, (111219), 39799 states have internal predecessors, (111219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 111219 transitions. [2022-01-18 11:03:20,766 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 111219 transitions. Word has length 231 [2022-01-18 11:03:20,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:20,767 INFO L470 AbstractCegarLoop]: Abstraction has 39800 states and 111219 transitions. [2022-01-18 11:03:20,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,767 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 111219 transitions. [2022-01-18 11:03:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:20,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:20,804 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:20,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 11:03:20,804 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 710625546, now seen corresponding path program 16 times [2022-01-18 11:03:20,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:20,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193933575] [2022-01-18 11:03:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:20,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:21,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:21,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193933575] [2022-01-18 11:03:21,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193933575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:21,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:21,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:03:21,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947631210] [2022-01-18 11:03:21,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:21,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:03:21,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:21,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:03:21,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:21,491 INFO L87 Difference]: Start difference. First operand 39800 states and 111219 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:27,553 INFO L93 Difference]: Finished difference Result 54622 states and 151330 transitions. [2022-01-18 11:03:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-01-18 11:03:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:27,666 INFO L225 Difference]: With dead ends: 54622 [2022-01-18 11:03:27,666 INFO L226 Difference]: Without dead ends: 54622 [2022-01-18 11:03:27,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5664 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4234, Invalid=14948, Unknown=0, NotChecked=0, Total=19182 [2022-01-18 11:03:27,667 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 2238 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 3006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:27,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2238 Valid, 8407 Invalid, 3006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:03:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54622 states. [2022-01-18 11:03:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54622 to 39796. [2022-01-18 11:03:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7943208945847466) internal successors, (111200), 39795 states have internal predecessors, (111200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111200 transitions. [2022-01-18 11:03:28,492 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111200 transitions. Word has length 231 [2022-01-18 11:03:28,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:28,493 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111200 transitions. [2022-01-18 11:03:28,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,493 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111200 transitions. [2022-01-18 11:03:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:28,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:28,531 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:28,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 11:03:28,531 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 956737534, now seen corresponding path program 17 times [2022-01-18 11:03:28,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:28,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136575707] [2022-01-18 11:03:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:28,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:29,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136575707] [2022-01-18 11:03:29,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136575707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:29,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:29,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:03:29,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224622749] [2022-01-18 11:03:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:29,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:03:29,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:03:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:29,100 INFO L87 Difference]: Start difference. First operand 39796 states and 111200 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:31,549 INFO L93 Difference]: Finished difference Result 51652 states and 143229 transitions. [2022-01-18 11:03:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:03:31,550 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:31,654 INFO L225 Difference]: With dead ends: 51652 [2022-01-18 11:03:31,655 INFO L226 Difference]: Without dead ends: 51652 [2022-01-18 11:03:31,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=971, Invalid=3189, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:03:31,655 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1871 mSDsluCounter, 4930 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 5261 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:31,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 5261 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:03:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51652 states. [2022-01-18 11:03:32,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51652 to 39792. [2022-01-18 11:03:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-01-18 11:03:32,518 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-01-18 11:03:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:32,518 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-01-18 11:03:32,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-01-18 11:03:32,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:32,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:32,559 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:32,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 11:03:32,559 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:32,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 245365692, now seen corresponding path program 18 times [2022-01-18 11:03:32,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:32,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624615618] [2022-01-18 11:03:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:32,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:33,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:33,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624615618] [2022-01-18 11:03:33,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624615618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:33,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:33,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:33,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119646324] [2022-01-18 11:03:33,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:33,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:33,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:33,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:33,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:33,256 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:38,967 INFO L93 Difference]: Finished difference Result 62322 states and 172096 transitions. [2022-01-18 11:03:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-01-18 11:03:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:39,081 INFO L225 Difference]: With dead ends: 62322 [2022-01-18 11:03:39,081 INFO L226 Difference]: Without dead ends: 61673 [2022-01-18 11:03:39,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5769 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4019, Invalid=16287, Unknown=0, NotChecked=0, Total=20306 [2022-01-18 11:03:39,082 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 2604 mSDsluCounter, 10142 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 10658 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:39,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2604 Valid, 10658 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:03:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61673 states. [2022-01-18 11:03:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61673 to 40464. [2022-01-18 11:03:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40464 states, 40463 states have (on average 2.796357165805798) internal successors, (113149), 40463 states have internal predecessors, (113149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40464 states to 40464 states and 113149 transitions. [2022-01-18 11:03:39,944 INFO L78 Accepts]: Start accepts. Automaton has 40464 states and 113149 transitions. Word has length 231 [2022-01-18 11:03:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:39,945 INFO L470 AbstractCegarLoop]: Abstraction has 40464 states and 113149 transitions. [2022-01-18 11:03:39,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 40464 states and 113149 transitions. [2022-01-18 11:03:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:39,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:39,982 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:39,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 11:03:39,983 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 933215832, now seen corresponding path program 19 times [2022-01-18 11:03:39,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486244248] [2022-01-18 11:03:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:39,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:40,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486244248] [2022-01-18 11:03:40,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486244248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:40,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:40,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:03:40,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498736106] [2022-01-18 11:03:40,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:40,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:03:40,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:40,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:03:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:40,527 INFO L87 Difference]: Start difference. First operand 40464 states and 113149 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:46,771 INFO L93 Difference]: Finished difference Result 80484 states and 221756 transitions. [2022-01-18 11:03:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-01-18 11:03:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:46,934 INFO L225 Difference]: With dead ends: 80484 [2022-01-18 11:03:46,935 INFO L226 Difference]: Without dead ends: 80484 [2022-01-18 11:03:46,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6554 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4399, Invalid=17951, Unknown=0, NotChecked=0, Total=22350 [2022-01-18 11:03:46,936 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2703 mSDsluCounter, 9360 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 9902 SdHoareTripleChecker+Invalid, 3646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:46,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 9902 Invalid, 3646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:03:47,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80484 states. [2022-01-18 11:03:47,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80484 to 40472. [2022-01-18 11:03:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40472 states, 40471 states have (on average 2.7966445108843367) internal successors, (113183), 40471 states have internal predecessors, (113183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113183 transitions. [2022-01-18 11:03:47,970 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113183 transitions. Word has length 231 [2022-01-18 11:03:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:47,970 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113183 transitions. [2022-01-18 11:03:47,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113183 transitions. [2022-01-18 11:03:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:48,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,010 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 11:03:48,010 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1541447410, now seen corresponding path program 20 times [2022-01-18 11:03:48,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29020251] [2022-01-18 11:03:48,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:48,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:48,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29020251] [2022-01-18 11:03:48,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29020251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:48,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:48,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:48,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629634869] [2022-01-18 11:03:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:48,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:48,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:48,638 INFO L87 Difference]: Start difference. First operand 40472 states and 113183 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:53,711 INFO L93 Difference]: Finished difference Result 63265 states and 175101 transitions. [2022-01-18 11:03:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-01-18 11:03:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:03:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:53,839 INFO L225 Difference]: With dead ends: 63265 [2022-01-18 11:03:53,839 INFO L226 Difference]: Without dead ends: 63265 [2022-01-18 11:03:53,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5308 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4087, Invalid=14819, Unknown=0, NotChecked=0, Total=18906 [2022-01-18 11:03:53,841 INFO L933 BasicCegarLoop]: 666 mSDtfsCounter, 2434 mSDsluCounter, 8483 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:53,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2434 Valid, 8980 Invalid, 3099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 11:03:53,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63265 states. [2022-01-18 11:03:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63265 to 40468. [2022-01-18 11:03:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40468 states, 40467 states have (on average 2.7964514295598883) internal successors, (113164), 40467 states have internal predecessors, (113164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40468 states to 40468 states and 113164 transitions. [2022-01-18 11:03:54,680 INFO L78 Accepts]: Start accepts. Automaton has 40468 states and 113164 transitions. Word has length 231 [2022-01-18 11:03:54,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:54,681 INFO L470 AbstractCegarLoop]: Abstraction has 40468 states and 113164 transitions. [2022-01-18 11:03:54,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 40468 states and 113164 transitions. [2022-01-18 11:03:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:03:54,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:54,718 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:54,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 11:03:54,718 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1295335422, now seen corresponding path program 21 times [2022-01-18 11:03:54,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993999003] [2022-01-18 11:03:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:03:55,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:55,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993999003] [2022-01-18 11:03:55,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993999003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:55,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:55,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:55,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278025477] [2022-01-18 11:03:55,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:55,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:55,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:55,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:55,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:55,242 INFO L87 Difference]: Start difference. First operand 40468 states and 113164 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:01,256 INFO L93 Difference]: Finished difference Result 63544 states and 175756 transitions. [2022-01-18 11:04:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-01-18 11:04:01,256 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:01,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:01,385 INFO L225 Difference]: With dead ends: 63544 [2022-01-18 11:04:01,385 INFO L226 Difference]: Without dead ends: 63544 [2022-01-18 11:04:01,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7396 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5246, Invalid=19246, Unknown=0, NotChecked=0, Total=24492 [2022-01-18 11:04:01,388 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 2572 mSDsluCounter, 9108 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 9617 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:01,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2572 Valid, 9617 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:04:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63544 states. [2022-01-18 11:04:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63544 to 40416. [2022-01-18 11:04:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40416 states, 40415 states have (on average 2.7960163305703327) internal successors, (113001), 40415 states have internal predecessors, (113001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40416 states to 40416 states and 113001 transitions. [2022-01-18 11:04:02,220 INFO L78 Accepts]: Start accepts. Automaton has 40416 states and 113001 transitions. Word has length 231 [2022-01-18 11:04:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:02,221 INFO L470 AbstractCegarLoop]: Abstraction has 40416 states and 113001 transitions. [2022-01-18 11:04:02,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 40416 states and 113001 transitions. [2022-01-18 11:04:02,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:02,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:02,257 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:02,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 11:04:02,258 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1209742604, now seen corresponding path program 22 times [2022-01-18 11:04:02,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:02,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825331820] [2022-01-18 11:04:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:02,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:02,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:02,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825331820] [2022-01-18 11:04:02,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825331820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:02,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:02,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:02,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331696269] [2022-01-18 11:04:02,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:02,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:02,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:02,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:02,875 INFO L87 Difference]: Start difference. First operand 40416 states and 113001 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:09,780 INFO L93 Difference]: Finished difference Result 75697 states and 208811 transitions. [2022-01-18 11:04:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-01-18 11:04:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:09,921 INFO L225 Difference]: With dead ends: 75697 [2022-01-18 11:04:09,921 INFO L226 Difference]: Without dead ends: 75169 [2022-01-18 11:04:09,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8058 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=5317, Invalid=19805, Unknown=0, NotChecked=0, Total=25122 [2022-01-18 11:04:09,923 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 2623 mSDsluCounter, 7254 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:09,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2623 Valid, 7725 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:04:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75169 states. [2022-01-18 11:04:10,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75169 to 40440. [2022-01-18 11:04:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40440 states, 40439 states have (on average 2.7960879349143153) internal successors, (113071), 40439 states have internal predecessors, (113071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 113071 transitions. [2022-01-18 11:04:10,823 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 113071 transitions. Word has length 231 [2022-01-18 11:04:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:10,824 INFO L470 AbstractCegarLoop]: Abstraction has 40440 states and 113071 transitions. [2022-01-18 11:04:10,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 113071 transitions. [2022-01-18 11:04:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:10,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:10,862 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:10,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 11:04:10,862 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 62217422, now seen corresponding path program 23 times [2022-01-18 11:04:10,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:10,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129692702] [2022-01-18 11:04:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:10,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:11,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:11,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129692702] [2022-01-18 11:04:11,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129692702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:11,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:11,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:11,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938843911] [2022-01-18 11:04:11,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:11,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:11,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:11,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:11,453 INFO L87 Difference]: Start difference. First operand 40440 states and 113071 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:19,232 INFO L93 Difference]: Finished difference Result 87139 states and 240635 transitions. [2022-01-18 11:04:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-01-18 11:04:19,232 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:19,525 INFO L225 Difference]: With dead ends: 87139 [2022-01-18 11:04:19,525 INFO L226 Difference]: Without dead ends: 86586 [2022-01-18 11:04:19,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11083 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=6904, Invalid=25316, Unknown=0, NotChecked=0, Total=32220 [2022-01-18 11:04:19,526 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 2855 mSDsluCounter, 7438 mSDsCounter, 0 mSdLazyCounter, 3117 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 7891 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:19,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2855 Valid, 7891 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:04:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86586 states. [2022-01-18 11:04:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86586 to 40496. [2022-01-18 11:04:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40496 states, 40495 states have (on average 2.7960242005185827) internal successors, (113225), 40495 states have internal predecessors, (113225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40496 states to 40496 states and 113225 transitions. [2022-01-18 11:04:20,639 INFO L78 Accepts]: Start accepts. Automaton has 40496 states and 113225 transitions. Word has length 231 [2022-01-18 11:04:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:20,639 INFO L470 AbstractCegarLoop]: Abstraction has 40496 states and 113225 transitions. [2022-01-18 11:04:20,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 40496 states and 113225 transitions. [2022-01-18 11:04:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:20,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:20,673 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:20,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 11:04:20,674 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:20,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1866716852, now seen corresponding path program 24 times [2022-01-18 11:04:20,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:20,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832952779] [2022-01-18 11:04:20,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:20,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:21,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:21,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832952779] [2022-01-18 11:04:21,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832952779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:21,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:21,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:04:21,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067362862] [2022-01-18 11:04:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:21,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:04:21,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:04:21,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:04:21,291 INFO L87 Difference]: Start difference. First operand 40496 states and 113225 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:28,114 INFO L93 Difference]: Finished difference Result 88670 states and 246537 transitions. [2022-01-18 11:04:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-01-18 11:04:28,115 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:28,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:28,286 INFO L225 Difference]: With dead ends: 88670 [2022-01-18 11:04:28,286 INFO L226 Difference]: Without dead ends: 88670 [2022-01-18 11:04:28,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5580 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4136, Invalid=15324, Unknown=0, NotChecked=0, Total=19460 [2022-01-18 11:04:28,287 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 2526 mSDsluCounter, 9261 mSDsCounter, 0 mSdLazyCounter, 3825 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 9689 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:28,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 9689 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3825 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 11:04:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88670 states. [2022-01-18 11:04:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88670 to 40424. [2022-01-18 11:04:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:29,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-01-18 11:04:29,385 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-01-18 11:04:29,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:29,385 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-01-18 11:04:29,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-01-18 11:04:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:29,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:29,424 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:29,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 11:04:29,425 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:29,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:29,425 INFO L85 PathProgramCache]: Analyzing trace with hash 351587410, now seen corresponding path program 25 times [2022-01-18 11:04:29,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:29,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427421259] [2022-01-18 11:04:29,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:29,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:30,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:30,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427421259] [2022-01-18 11:04:30,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427421259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:30,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:30,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:04:30,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573068506] [2022-01-18 11:04:30,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:30,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:04:30,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:30,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:04:30,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:04:30,008 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:37,468 INFO L93 Difference]: Finished difference Result 83368 states and 229967 transitions. [2022-01-18 11:04:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-01-18 11:04:37,468 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:37,622 INFO L225 Difference]: With dead ends: 83368 [2022-01-18 11:04:37,622 INFO L226 Difference]: Without dead ends: 83368 [2022-01-18 11:04:37,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8870 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=5613, Invalid=22443, Unknown=0, NotChecked=0, Total=28056 [2022-01-18 11:04:37,624 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 2449 mSDsluCounter, 10927 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 11460 SdHoareTripleChecker+Invalid, 4585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:37,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 11460 Invalid, 4585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 11:04:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83368 states. [2022-01-18 11:04:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83368 to 40428. [2022-01-18 11:04:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-01-18 11:04:38,591 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-01-18 11:04:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:38,591 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-01-18 11:04:38,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-01-18 11:04:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:38,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:38,627 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:38,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 11:04:38,627 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:38,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2123075832, now seen corresponding path program 26 times [2022-01-18 11:04:38,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:38,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889818595] [2022-01-18 11:04:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:38,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:39,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:39,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889818595] [2022-01-18 11:04:39,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889818595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:39,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:39,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:04:39,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444780072] [2022-01-18 11:04:39,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:39,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:04:39,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:04:39,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:04:39,053 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:45,652 INFO L93 Difference]: Finished difference Result 66188 states and 183375 transitions. [2022-01-18 11:04:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-01-18 11:04:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:45,775 INFO L225 Difference]: With dead ends: 66188 [2022-01-18 11:04:45,775 INFO L226 Difference]: Without dead ends: 66188 [2022-01-18 11:04:45,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12095 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=6892, Invalid=28640, Unknown=0, NotChecked=0, Total=35532 [2022-01-18 11:04:45,777 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 2676 mSDsluCounter, 9096 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 9621 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:45,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2676 Valid, 9621 Invalid, 3491 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:04:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66188 states. [2022-01-18 11:04:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66188 to 40420. [2022-01-18 11:04:46,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40420 states, 40419 states have (on average 2.7960117766396992) internal successors, (113012), 40419 states have internal predecessors, (113012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40420 states to 40420 states and 113012 transitions. [2022-01-18 11:04:46,634 INFO L78 Accepts]: Start accepts. Automaton has 40420 states and 113012 transitions. Word has length 231 [2022-01-18 11:04:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:46,634 INFO L470 AbstractCegarLoop]: Abstraction has 40420 states and 113012 transitions. [2022-01-18 11:04:46,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,634 INFO L276 IsEmpty]: Start isEmpty. Operand 40420 states and 113012 transitions. [2022-01-18 11:04:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:46,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:46,669 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:46,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 11:04:46,669 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -433375326, now seen corresponding path program 27 times [2022-01-18 11:04:46,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:46,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195874980] [2022-01-18 11:04:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:46,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:47,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:47,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195874980] [2022-01-18 11:04:47,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195874980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:47,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:47,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:47,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086052277] [2022-01-18 11:04:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:47,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:47,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:47,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:47,158 INFO L87 Difference]: Start difference. First operand 40420 states and 113012 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:53,607 INFO L93 Difference]: Finished difference Result 84096 states and 231969 transitions. [2022-01-18 11:04:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-01-18 11:04:53,607 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:04:53,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:53,768 INFO L225 Difference]: With dead ends: 84096 [2022-01-18 11:04:53,768 INFO L226 Difference]: Without dead ends: 84096 [2022-01-18 11:04:53,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10107 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=6257, Invalid=24193, Unknown=0, NotChecked=0, Total=30450 [2022-01-18 11:04:53,770 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 2426 mSDsluCounter, 8434 mSDsCounter, 0 mSdLazyCounter, 3394 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 8977 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:53,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2426 Valid, 8977 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 11:04:53,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84096 states. [2022-01-18 11:04:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84096 to 40428. [2022-01-18 11:04:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:54,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-01-18 11:04:54,822 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-01-18 11:04:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:54,822 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-01-18 11:04:54,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-01-18 11:04:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:04:54,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:54,857 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:54,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 11:04:54,857 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1386928728, now seen corresponding path program 28 times [2022-01-18 11:04:54,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:54,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824785522] [2022-01-18 11:04:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:54,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:55,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:55,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824785522] [2022-01-18 11:04:55,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824785522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:55,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:55,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:04:55,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875629193] [2022-01-18 11:04:55,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:55,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:04:55,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:04:55,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:04:55,326 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:01,232 INFO L93 Difference]: Finished difference Result 65693 states and 182026 transitions. [2022-01-18 11:05:01,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-01-18 11:05:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:01,353 INFO L225 Difference]: With dead ends: 65693 [2022-01-18 11:05:01,353 INFO L226 Difference]: Without dead ends: 65693 [2022-01-18 11:05:01,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8306 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5687, Invalid=20719, Unknown=0, NotChecked=0, Total=26406 [2022-01-18 11:05:01,355 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2285 mSDsluCounter, 9095 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 9598 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:01,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2285 Valid, 9598 Invalid, 3608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 11:05:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2022-01-18 11:05:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 40424. [2022-01-18 11:05:02,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-01-18 11:05:02,212 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-01-18 11:05:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:02,212 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-01-18 11:05:02,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-01-18 11:05:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:02,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:02,247 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:02,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 11:05:02,248 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:02,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:02,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1633040716, now seen corresponding path program 29 times [2022-01-18 11:05:02,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:02,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181817291] [2022-01-18 11:05:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:02,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:02,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:02,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181817291] [2022-01-18 11:05:02,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181817291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:02,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:02,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 11:05:02,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302559835] [2022-01-18 11:05:02,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:02,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:05:02,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:02,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:05:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:05:02,685 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:04,497 INFO L93 Difference]: Finished difference Result 62439 states and 173016 transitions. [2022-01-18 11:05:04,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:05:04,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:04,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:04,612 INFO L225 Difference]: With dead ends: 62439 [2022-01-18 11:05:04,612 INFO L226 Difference]: Without dead ends: 62439 [2022-01-18 11:05:04,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1043, Invalid=3247, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:05:04,613 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1790 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:04,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1790 Valid, 4780 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:05:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62439 states. [2022-01-18 11:05:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62439 to 40368. [2022-01-18 11:05:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40368 states, 40367 states have (on average 2.7959719572918473) internal successors, (112865), 40367 states have internal predecessors, (112865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40368 states to 40368 states and 112865 transitions. [2022-01-18 11:05:05,543 INFO L78 Accepts]: Start accepts. Automaton has 40368 states and 112865 transitions. Word has length 231 [2022-01-18 11:05:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:05,543 INFO L470 AbstractCegarLoop]: Abstraction has 40368 states and 112865 transitions. [2022-01-18 11:05:05,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 40368 states and 112865 transitions. [2022-01-18 11:05:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:05,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:05,579 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:05,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 11:05:05,579 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:05,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:05,579 INFO L85 PathProgramCache]: Analyzing trace with hash 222172088, now seen corresponding path program 30 times [2022-01-18 11:05:05,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:05,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387304447] [2022-01-18 11:05:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:05,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:06,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:06,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387304447] [2022-01-18 11:05:06,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387304447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:06,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:06,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:06,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921095279] [2022-01-18 11:05:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:06,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:06,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:06,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:06,107 INFO L87 Difference]: Start difference. First operand 40368 states and 112865 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:12,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:12,963 INFO L93 Difference]: Finished difference Result 70553 states and 194269 transitions. [2022-01-18 11:05:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 11:05:12,963 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:13,098 INFO L225 Difference]: With dead ends: 70553 [2022-01-18 11:05:13,098 INFO L226 Difference]: Without dead ends: 70081 [2022-01-18 11:05:13,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4981, Invalid=20779, Unknown=0, NotChecked=0, Total=25760 [2022-01-18 11:05:13,100 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 3013 mSDsluCounter, 8683 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:13,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3013 Valid, 9174 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3415 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:05:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70081 states. [2022-01-18 11:05:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70081 to 40620. [2022-01-18 11:05:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40620 states, 40619 states have (on average 2.797065412737881) internal successors, (113614), 40619 states have internal predecessors, (113614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40620 states to 40620 states and 113614 transitions. [2022-01-18 11:05:13,957 INFO L78 Accepts]: Start accepts. Automaton has 40620 states and 113614 transitions. Word has length 231 [2022-01-18 11:05:13,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:13,957 INFO L470 AbstractCegarLoop]: Abstraction has 40620 states and 113614 transitions. [2022-01-18 11:05:13,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 40620 states and 113614 transitions. [2022-01-18 11:05:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:14,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:14,150 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:14,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 11:05:14,150 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash -925353094, now seen corresponding path program 31 times [2022-01-18 11:05:14,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:14,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193030183] [2022-01-18 11:05:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:14,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:14,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:14,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193030183] [2022-01-18 11:05:14,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193030183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:14,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:14,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:14,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976634385] [2022-01-18 11:05:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:14,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:14,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:14,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:14,631 INFO L87 Difference]: Start difference. First operand 40620 states and 113614 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:21,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:21,384 INFO L93 Difference]: Finished difference Result 71863 states and 198126 transitions. [2022-01-18 11:05:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-01-18 11:05:21,387 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:21,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:21,522 INFO L225 Difference]: With dead ends: 71863 [2022-01-18 11:05:21,522 INFO L226 Difference]: Without dead ends: 71450 [2022-01-18 11:05:21,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8955 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=5281, Invalid=22109, Unknown=0, NotChecked=0, Total=27390 [2022-01-18 11:05:21,523 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2923 mSDsluCounter, 9360 mSDsCounter, 0 mSdLazyCounter, 3916 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 9852 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:21,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 9852 Invalid, 3943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 11:05:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71450 states. [2022-01-18 11:05:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71450 to 40648. [2022-01-18 11:05:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40648 states, 40647 states have (on average 2.7970329913646763) internal successors, (113691), 40647 states have internal predecessors, (113691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40648 states to 40648 states and 113691 transitions. [2022-01-18 11:05:22,442 INFO L78 Accepts]: Start accepts. Automaton has 40648 states and 113691 transitions. Word has length 231 [2022-01-18 11:05:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:22,442 INFO L470 AbstractCegarLoop]: Abstraction has 40648 states and 113691 transitions. [2022-01-18 11:05:22,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 40648 states and 113691 transitions. [2022-01-18 11:05:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:22,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:22,478 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:22,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 11:05:22,478 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:22,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1440679928, now seen corresponding path program 32 times [2022-01-18 11:05:22,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:22,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402588382] [2022-01-18 11:05:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:22,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:22,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:22,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402588382] [2022-01-18 11:05:22,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402588382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:22,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:22,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-18 11:05:22,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621844] [2022-01-18 11:05:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:22,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 11:05:22,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 11:05:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:05:22,808 INFO L87 Difference]: Start difference. First operand 40648 states and 113691 transitions. Second operand has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:23,743 INFO L93 Difference]: Finished difference Result 56928 states and 157575 transitions. [2022-01-18 11:05:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:05:23,743 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:23,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:23,847 INFO L225 Difference]: With dead ends: 56928 [2022-01-18 11:05:23,847 INFO L226 Difference]: Without dead ends: 56928 [2022-01-18 11:05:23,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:05:23,848 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1404 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:23,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 4081 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:05:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2022-01-18 11:05:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 41136. [2022-01-18 11:05:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-01-18 11:05:24,851 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-01-18 11:05:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:24,851 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-01-18 11:05:24,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-01-18 11:05:24,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:24,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:24,887 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:24,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 11:05:24,887 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:24,887 INFO L85 PathProgramCache]: Analyzing trace with hash 544713298, now seen corresponding path program 33 times [2022-01-18 11:05:24,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:24,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253368368] [2022-01-18 11:05:24,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:24,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:25,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:25,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253368368] [2022-01-18 11:05:25,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253368368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:25,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:25,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:05:25,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653910767] [2022-01-18 11:05:25,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:25,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:05:25,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:05:25,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:05:25,477 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:34,425 INFO L93 Difference]: Finished difference Result 71693 states and 197524 transitions. [2022-01-18 11:05:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-01-18 11:05:34,425 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:34,558 INFO L225 Difference]: With dead ends: 71693 [2022-01-18 11:05:34,558 INFO L226 Difference]: Without dead ends: 71221 [2022-01-18 11:05:34,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10593 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=6540, Invalid=26402, Unknown=0, NotChecked=0, Total=32942 [2022-01-18 11:05:34,560 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2633 mSDsluCounter, 10881 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 4602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:34,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2633 Valid, 11387 Invalid, 4602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 11:05:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71221 states. [2022-01-18 11:05:35,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71221 to 41156. [2022-01-18 11:05:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41156 states, 41155 states have (on average 2.7953833070100838) internal successors, (115044), 41155 states have internal predecessors, (115044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41156 states to 41156 states and 115044 transitions. [2022-01-18 11:05:35,484 INFO L78 Accepts]: Start accepts. Automaton has 41156 states and 115044 transitions. Word has length 231 [2022-01-18 11:05:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:35,484 INFO L470 AbstractCegarLoop]: Abstraction has 41156 states and 115044 transitions. [2022-01-18 11:05:35,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 41156 states and 115044 transitions. [2022-01-18 11:05:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:35,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:35,523 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 11:05:35,523 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -602811884, now seen corresponding path program 34 times [2022-01-18 11:05:35,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680068994] [2022-01-18 11:05:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:35,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:36,160 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:36,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:36,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680068994] [2022-01-18 11:05:36,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680068994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:36,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:36,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:36,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131973152] [2022-01-18 11:05:36,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:36,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:36,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:36,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:36,161 INFO L87 Difference]: Start difference. First operand 41156 states and 115044 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:43,915 INFO L93 Difference]: Finished difference Result 72976 states and 201312 transitions. [2022-01-18 11:05:43,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-01-18 11:05:43,916 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:43,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:44,049 INFO L225 Difference]: With dead ends: 72976 [2022-01-18 11:05:44,049 INFO L226 Difference]: Without dead ends: 72451 [2022-01-18 11:05:44,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9543 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=6155, Invalid=22915, Unknown=0, NotChecked=0, Total=29070 [2022-01-18 11:05:44,051 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 2558 mSDsluCounter, 9394 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 9837 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:44,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 9837 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 11:05:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72451 states. [2022-01-18 11:05:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72451 to 41212. [2022-01-18 11:05:44,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41212 states, 41211 states have (on average 2.7953216374269005) internal successors, (115198), 41211 states have internal predecessors, (115198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41212 states to 41212 states and 115198 transitions. [2022-01-18 11:05:44,999 INFO L78 Accepts]: Start accepts. Automaton has 41212 states and 115198 transitions. Word has length 231 [2022-01-18 11:05:44,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:44,999 INFO L470 AbstractCegarLoop]: Abstraction has 41212 states and 115198 transitions. [2022-01-18 11:05:44,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 41212 states and 115198 transitions. [2022-01-18 11:05:45,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:45,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:45,037 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:45,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 11:05:45,038 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1763221138, now seen corresponding path program 35 times [2022-01-18 11:05:45,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:45,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720783557] [2022-01-18 11:05:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:45,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:45,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:45,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720783557] [2022-01-18 11:05:45,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720783557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:45,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:45,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:05:45,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830321422] [2022-01-18 11:05:45,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:45,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:05:45,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:05:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:05:45,612 INFO L87 Difference]: Start difference. First operand 41212 states and 115198 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:53,125 INFO L93 Difference]: Finished difference Result 84422 states and 234555 transitions. [2022-01-18 11:05:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-01-18 11:05:53,126 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:05:53,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:53,288 INFO L225 Difference]: With dead ends: 84422 [2022-01-18 11:05:53,289 INFO L226 Difference]: Without dead ends: 84422 [2022-01-18 11:05:53,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6207 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4546, Invalid=17210, Unknown=0, NotChecked=0, Total=21756 [2022-01-18 11:05:53,290 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 2616 mSDsluCounter, 9717 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 10178 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:53,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2616 Valid, 10178 Invalid, 4116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4095 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 11:05:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84422 states. [2022-01-18 11:05:54,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84422 to 41140. [2022-01-18 11:05:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.795400957728676) internal successors, (115000), 41139 states have internal predecessors, (115000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 115000 transitions. [2022-01-18 11:05:54,277 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 115000 transitions. Word has length 231 [2022-01-18 11:05:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:54,278 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 115000 transitions. [2022-01-18 11:05:54,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 115000 transitions. [2022-01-18 11:05:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:05:54,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:54,315 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:54,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 11:05:54,315 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:54,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:54,315 INFO L85 PathProgramCache]: Analyzing trace with hash -313441896, now seen corresponding path program 36 times [2022-01-18 11:05:54,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:54,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528205836] [2022-01-18 11:05:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:54,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:54,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:54,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528205836] [2022-01-18 11:05:54,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528205836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:54,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:54,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:54,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463723251] [2022-01-18 11:05:54,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:54,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:54,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:54,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:54,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:54,765 INFO L87 Difference]: Start difference. First operand 41140 states and 115000 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:00,294 INFO L93 Difference]: Finished difference Result 77008 states and 212001 transitions. [2022-01-18 11:06:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-01-18 11:06:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:00,620 INFO L225 Difference]: With dead ends: 77008 [2022-01-18 11:06:00,620 INFO L226 Difference]: Without dead ends: 77008 [2022-01-18 11:06:00,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6044 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4174, Invalid=16418, Unknown=0, NotChecked=0, Total=20592 [2022-01-18 11:06:00,621 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 2409 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 3675 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9366 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:00,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9366 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3675 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:06:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77008 states. [2022-01-18 11:06:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77008 to 41144. [2022-01-18 11:06:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7955909875312934) internal successors, (115019), 41143 states have internal predecessors, (115019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115019 transitions. [2022-01-18 11:06:01,438 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115019 transitions. Word has length 231 [2022-01-18 11:06:01,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:01,438 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115019 transitions. [2022-01-18 11:06:01,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115019 transitions. [2022-01-18 11:06:01,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:01,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:01,474 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:01,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 11:06:01,474 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:01,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1506862158, now seen corresponding path program 37 times [2022-01-18 11:06:01,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:01,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177785799] [2022-01-18 11:06:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:01,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:02,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177785799] [2022-01-18 11:06:02,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177785799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:02,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:02,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:06:02,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990776729] [2022-01-18 11:06:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:02,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:06:02,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:06:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:06:02,051 INFO L87 Difference]: Start difference. First operand 41144 states and 115019 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:06,583 INFO L93 Difference]: Finished difference Result 59489 states and 164505 transitions. [2022-01-18 11:06:06,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-01-18 11:06:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:06,693 INFO L225 Difference]: With dead ends: 59489 [2022-01-18 11:06:06,694 INFO L226 Difference]: Without dead ends: 59489 [2022-01-18 11:06:06,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3867 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3406, Invalid=11600, Unknown=0, NotChecked=0, Total=15006 [2022-01-18 11:06:06,695 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 2517 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:06,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2517 Valid, 8905 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:06:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59489 states. [2022-01-18 11:06:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59489 to 41136. [2022-01-18 11:06:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-01-18 11:06:07,526 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-01-18 11:06:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:07,527 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-01-18 11:06:07,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-01-18 11:06:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:07,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:07,564 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:07,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 11:06:07,564 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:07,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1168755266, now seen corresponding path program 38 times [2022-01-18 11:06:07,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:07,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937720946] [2022-01-18 11:06:07,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:07,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:08,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937720946] [2022-01-18 11:06:08,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937720946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:08,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:08,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:08,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338709435] [2022-01-18 11:06:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:08,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:08,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:08,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:08,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:08,058 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:16,251 INFO L93 Difference]: Finished difference Result 72045 states and 198516 transitions. [2022-01-18 11:06:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-01-18 11:06:16,251 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:16,390 INFO L225 Difference]: With dead ends: 72045 [2022-01-18 11:06:16,391 INFO L226 Difference]: Without dead ends: 71573 [2022-01-18 11:06:16,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11594 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=6953, Invalid=27087, Unknown=0, NotChecked=0, Total=34040 [2022-01-18 11:06:16,393 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 2425 mSDsluCounter, 9622 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:16,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 10075 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3915 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 11:06:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71573 states. [2022-01-18 11:06:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71573 to 41160. [2022-01-18 11:06:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41160 states, 41159 states have (on average 2.795378896474647) internal successors, (115055), 41159 states have internal predecessors, (115055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41160 states to 41160 states and 115055 transitions. [2022-01-18 11:06:17,356 INFO L78 Accepts]: Start accepts. Automaton has 41160 states and 115055 transitions. Word has length 231 [2022-01-18 11:06:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:17,356 INFO L470 AbstractCegarLoop]: Abstraction has 41160 states and 115055 transitions. [2022-01-18 11:06:17,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 41160 states and 115055 transitions. [2022-01-18 11:06:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:17,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:17,394 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:17,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 11:06:17,394 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686848, now seen corresponding path program 39 times [2022-01-18 11:06:17,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:17,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006084363] [2022-01-18 11:06:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:17,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:17,868 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:17,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:17,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006084363] [2022-01-18 11:06:17,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006084363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:17,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:17,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:17,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098366734] [2022-01-18 11:06:17,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:17,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:17,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:17,870 INFO L87 Difference]: Start difference. First operand 41160 states and 115055 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:26,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:26,081 INFO L93 Difference]: Finished difference Result 73568 states and 202980 transitions. [2022-01-18 11:06:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-01-18 11:06:26,081 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:26,228 INFO L225 Difference]: With dead ends: 73568 [2022-01-18 11:06:26,228 INFO L226 Difference]: Without dead ends: 73043 [2022-01-18 11:06:26,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13305 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=7813, Invalid=30017, Unknown=0, NotChecked=0, Total=37830 [2022-01-18 11:06:26,231 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 2680 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 3525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:26,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2680 Valid, 8808 Invalid, 3525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:06:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73043 states. [2022-01-18 11:06:27,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73043 to 41216. [2022-01-18 11:06:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41216 states, 41215 states have (on average 2.7953172388693437) internal successors, (115209), 41215 states have internal predecessors, (115209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41216 states to 41216 states and 115209 transitions. [2022-01-18 11:06:27,307 INFO L78 Accepts]: Start accepts. Automaton has 41216 states and 115209 transitions. Word has length 231 [2022-01-18 11:06:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:27,307 INFO L470 AbstractCegarLoop]: Abstraction has 41216 states and 115209 transitions. [2022-01-18 11:06:27,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 41216 states and 115209 transitions. [2022-01-18 11:06:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:27,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:27,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:27,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 11:06:27,348 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 49752574, now seen corresponding path program 40 times [2022-01-18 11:06:27,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:27,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94962183] [2022-01-18 11:06:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:27,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:27,960 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:27,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:27,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94962183] [2022-01-18 11:06:27,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94962183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:27,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:27,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:06:27,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588009961] [2022-01-18 11:06:27,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:27,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:06:27,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:06:27,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:06:27,961 INFO L87 Difference]: Start difference. First operand 41216 states and 115209 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:35,865 INFO L93 Difference]: Finished difference Result 84902 states and 235915 transitions. [2022-01-18 11:06:35,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-01-18 11:06:35,866 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:36,026 INFO L225 Difference]: With dead ends: 84902 [2022-01-18 11:06:36,026 INFO L226 Difference]: Without dead ends: 84902 [2022-01-18 11:06:36,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8314 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5641, Invalid=21419, Unknown=0, NotChecked=0, Total=27060 [2022-01-18 11:06:36,027 INFO L933 BasicCegarLoop]: 664 mSDtfsCounter, 2767 mSDsluCounter, 9245 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 9708 SdHoareTripleChecker+Invalid, 3954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:36,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2767 Valid, 9708 Invalid, 3954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 11:06:36,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84902 states. [2022-01-18 11:06:36,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84902 to 41144. [2022-01-18 11:06:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.795396543762001) internal successors, (115011), 41143 states have internal predecessors, (115011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115011 transitions. [2022-01-18 11:06:37,018 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115011 transitions. Word has length 231 [2022-01-18 11:06:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:37,018 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115011 transitions. [2022-01-18 11:06:37,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:37,019 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115011 transitions. [2022-01-18 11:06:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:37,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:37,056 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:37,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 11:06:37,056 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:37,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:37,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2026910460, now seen corresponding path program 41 times [2022-01-18 11:06:37,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:37,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291399339] [2022-01-18 11:06:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:37,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:37,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291399339] [2022-01-18 11:06:37,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291399339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:37,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:37,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:37,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370097039] [2022-01-18 11:06:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:37,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:37,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:37,510 INFO L87 Difference]: Start difference. First operand 41144 states and 115011 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:44,582 INFO L93 Difference]: Finished difference Result 79192 states and 218155 transitions. [2022-01-18 11:06:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-01-18 11:06:44,583 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:44,734 INFO L225 Difference]: With dead ends: 79192 [2022-01-18 11:06:44,734 INFO L226 Difference]: Without dead ends: 79192 [2022-01-18 11:06:44,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10786 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=6530, Invalid=25690, Unknown=0, NotChecked=0, Total=32220 [2022-01-18 11:06:44,736 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 2395 mSDsluCounter, 8776 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:44,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2395 Valid, 9292 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:06:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79192 states. [2022-01-18 11:06:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79192 to 41148. [2022-01-18 11:06:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41148 states, 41147 states have (on average 2.795586555520451) internal successors, (115030), 41147 states have internal predecessors, (115030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41148 states to 41148 states and 115030 transitions. [2022-01-18 11:06:45,720 INFO L78 Accepts]: Start accepts. Automaton has 41148 states and 115030 transitions. Word has length 231 [2022-01-18 11:06:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:45,720 INFO L470 AbstractCegarLoop]: Abstraction has 41148 states and 115030 transitions. [2022-01-18 11:06:45,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 41148 states and 115030 transitions. [2022-01-18 11:06:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:45,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:45,758 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:45,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 11:06:45,758 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -206606406, now seen corresponding path program 42 times [2022-01-18 11:06:45,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:45,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305053966] [2022-01-18 11:06:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:45,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:46,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:46,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305053966] [2022-01-18 11:06:46,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305053966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:46,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:46,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:06:46,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543895752] [2022-01-18 11:06:46,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:46,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:06:46,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:46,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:06:46,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:06:46,355 INFO L87 Difference]: Start difference. First operand 41148 states and 115030 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:51,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:51,823 INFO L93 Difference]: Finished difference Result 60865 states and 168413 transitions. [2022-01-18 11:06:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-01-18 11:06:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:06:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:51,945 INFO L225 Difference]: With dead ends: 60865 [2022-01-18 11:06:51,946 INFO L226 Difference]: Without dead ends: 60865 [2022-01-18 11:06:51,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5751 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4456, Invalid=15566, Unknown=0, NotChecked=0, Total=20022 [2022-01-18 11:06:51,947 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 2361 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 3778 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 9701 SdHoareTripleChecker+Invalid, 3789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:51,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 9701 Invalid, 3789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3778 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 11:06:52,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60865 states. [2022-01-18 11:06:52,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60865 to 41140. [2022-01-18 11:06:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.795303726391016) internal successors, (114996), 41139 states have internal predecessors, (114996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114996 transitions. [2022-01-18 11:06:52,830 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114996 transitions. Word has length 231 [2022-01-18 11:06:52,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:52,831 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114996 transitions. [2022-01-18 11:06:52,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114996 transitions. [2022-01-18 11:06:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:06:52,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:52,877 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:52,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 11:06:52,877 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:52,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1483094100, now seen corresponding path program 43 times [2022-01-18 11:06:52,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:52,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927980434] [2022-01-18 11:06:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:52,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:53,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:53,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927980434] [2022-01-18 11:06:53,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927980434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:53,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:53,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 11:06:53,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441448155] [2022-01-18 11:06:53,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:53,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 11:06:53,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 11:06:53,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:06:53,464 INFO L87 Difference]: Start difference. First operand 41140 states and 114996 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:01,594 INFO L93 Difference]: Finished difference Result 77200 states and 212533 transitions. [2022-01-18 11:07:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-01-18 11:07:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:01,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:01,851 INFO L225 Difference]: With dead ends: 77200 [2022-01-18 11:07:01,851 INFO L226 Difference]: Without dead ends: 77200 [2022-01-18 11:07:01,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10274 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=6317, Invalid=25903, Unknown=0, NotChecked=0, Total=32220 [2022-01-18 11:07:01,852 INFO L933 BasicCegarLoop]: 775 mSDtfsCounter, 2569 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 10395 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:01,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2569 Valid, 10395 Invalid, 4288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 11:07:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77200 states. [2022-01-18 11:07:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77200 to 41148. [2022-01-18 11:07:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41148 states, 41147 states have (on average 2.795586555520451) internal successors, (115030), 41147 states have internal predecessors, (115030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41148 states to 41148 states and 115030 transitions. [2022-01-18 11:07:02,925 INFO L78 Accepts]: Start accepts. Automaton has 41148 states and 115030 transitions. Word has length 231 [2022-01-18 11:07:02,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:02,925 INFO L470 AbstractCegarLoop]: Abstraction has 41148 states and 115030 transitions. [2022-01-18 11:07:02,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 41148 states and 115030 transitions. [2022-01-18 11:07:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:02,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:02,959 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:02,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 11:07:02,959 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:02,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash -991569142, now seen corresponding path program 44 times [2022-01-18 11:07:02,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:02,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462013273] [2022-01-18 11:07:02,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:02,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:03,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:03,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462013273] [2022-01-18 11:07:03,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462013273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:03,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:03,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-18 11:07:03,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722136982] [2022-01-18 11:07:03,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:03,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:07:03,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:03,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:07:03,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:07:03,403 INFO L87 Difference]: Start difference. First operand 41148 states and 115030 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:08,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:08,428 INFO L93 Difference]: Finished difference Result 60297 states and 166731 transitions. [2022-01-18 11:07:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 11:07:08,429 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:08,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:08,545 INFO L225 Difference]: With dead ends: 60297 [2022-01-18 11:07:08,545 INFO L226 Difference]: Without dead ends: 60297 [2022-01-18 11:07:08,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4975 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4048, Invalid=14042, Unknown=0, NotChecked=0, Total=18090 [2022-01-18 11:07:08,547 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 2513 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 3281 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2513 SdHoareTripleChecker+Valid, 8652 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:08,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2513 Valid, 8652 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 11:07:08,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60297 states. [2022-01-18 11:07:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60297 to 41144. [2022-01-18 11:07:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.795396543762001) internal successors, (115011), 41143 states have internal predecessors, (115011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:09,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115011 transitions. [2022-01-18 11:07:09,366 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115011 transitions. Word has length 231 [2022-01-18 11:07:09,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:09,366 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115011 transitions. [2022-01-18 11:07:09,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:09,366 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115011 transitions. [2022-01-18 11:07:09,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:09,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:09,405 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:09,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 11:07:09,406 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:09,406 INFO L85 PathProgramCache]: Analyzing trace with hash -745457154, now seen corresponding path program 45 times [2022-01-18 11:07:09,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:09,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841797605] [2022-01-18 11:07:09,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:09,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:09,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:09,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841797605] [2022-01-18 11:07:09,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841797605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:09,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:09,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:09,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202123920] [2022-01-18 11:07:09,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:09,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:09,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:09,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:09,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:09,952 INFO L87 Difference]: Start difference. First operand 41144 states and 115011 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:16,835 INFO L93 Difference]: Finished difference Result 58975 states and 163091 transitions. [2022-01-18 11:07:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-01-18 11:07:16,835 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:16,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:16,941 INFO L225 Difference]: With dead ends: 58975 [2022-01-18 11:07:16,942 INFO L226 Difference]: Without dead ends: 58975 [2022-01-18 11:07:16,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7181 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=5265, Invalid=19541, Unknown=0, NotChecked=0, Total=24806 [2022-01-18 11:07:16,943 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2693 mSDsluCounter, 10109 mSDsCounter, 0 mSdLazyCounter, 4153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 10624 SdHoareTripleChecker+Invalid, 4165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:16,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2693 Valid, 10624 Invalid, 4165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4153 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 11:07:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58975 states. [2022-01-18 11:07:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58975 to 41136. [2022-01-18 11:07:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-01-18 11:07:17,756 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-01-18 11:07:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:17,756 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-01-18 11:07:17,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-01-18 11:07:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:17,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:17,796 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:17,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 11:07:17,796 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:17,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2116950654, now seen corresponding path program 46 times [2022-01-18 11:07:17,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:17,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603534339] [2022-01-18 11:07:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:17,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:18,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:18,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603534339] [2022-01-18 11:07:18,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603534339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:18,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:18,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:18,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550638735] [2022-01-18 11:07:18,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:18,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:18,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:18,186 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:19,389 INFO L93 Difference]: Finished difference Result 57294 states and 158607 transitions. [2022-01-18 11:07:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:07:19,389 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:19,714 INFO L225 Difference]: With dead ends: 57294 [2022-01-18 11:07:19,714 INFO L226 Difference]: Without dead ends: 56645 [2022-01-18 11:07:19,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:07:19,714 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1259 mSDsluCounter, 5170 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 5541 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:19,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 5541 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56645 states. [2022-01-18 11:07:20,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56645 to 41136. [2022-01-18 11:07:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.794432964628662) internal successors, (114949), 41135 states have internal predecessors, (114949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114949 transitions. [2022-01-18 11:07:20,464 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114949 transitions. Word has length 231 [2022-01-18 11:07:20,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:20,464 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114949 transitions. [2022-01-18 11:07:20,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114949 transitions. [2022-01-18 11:07:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:20,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:20,501 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:20,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 11:07:20,501 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:20,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash -897731330, now seen corresponding path program 47 times [2022-01-18 11:07:20,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:20,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560111723] [2022-01-18 11:07:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:20,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:20,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:20,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560111723] [2022-01-18 11:07:20,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560111723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:20,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:20,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:20,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483443022] [2022-01-18 11:07:20,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:20,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:20,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:20,870 INFO L87 Difference]: Start difference. First operand 41136 states and 114949 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:22,335 INFO L93 Difference]: Finished difference Result 58544 states and 162344 transitions. [2022-01-18 11:07:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:07:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:22,451 INFO L225 Difference]: With dead ends: 58544 [2022-01-18 11:07:22,451 INFO L226 Difference]: Without dead ends: 58544 [2022-01-18 11:07:22,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=724, Invalid=2138, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:22,452 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1381 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 5023 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:22,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 5023 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58544 states. [2022-01-18 11:07:23,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58544 to 41144. [2022-01-18 11:07:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.794715990569477) internal successors, (114983), 41143 states have internal predecessors, (114983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114983 transitions. [2022-01-18 11:07:23,399 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114983 transitions. Word has length 231 [2022-01-18 11:07:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114983 transitions. [2022-01-18 11:07:23,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114983 transitions. [2022-01-18 11:07:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:23,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:23,433 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:23,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 11:07:23,434 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:23,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash 922572724, now seen corresponding path program 48 times [2022-01-18 11:07:23,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:23,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41958717] [2022-01-18 11:07:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:23,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:23,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:23,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41958717] [2022-01-18 11:07:23,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41958717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:23,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:23,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:23,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573370563] [2022-01-18 11:07:23,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:23,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:23,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:23,811 INFO L87 Difference]: Start difference. First operand 41144 states and 114983 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:25,106 INFO L93 Difference]: Finished difference Result 58764 states and 162955 transitions. [2022-01-18 11:07:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:07:25,107 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:25,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:25,220 INFO L225 Difference]: With dead ends: 58764 [2022-01-18 11:07:25,220 INFO L226 Difference]: Without dead ends: 58764 [2022-01-18 11:07:25,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:07:25,220 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1396 mSDsluCounter, 4037 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:25,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 4430 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:07:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58764 states. [2022-01-18 11:07:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58764 to 41140. [2022-01-18 11:07:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7945258756897347) internal successors, (114964), 41139 states have internal predecessors, (114964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114964 transitions. [2022-01-18 11:07:25,961 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114964 transitions. Word has length 231 [2022-01-18 11:07:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:25,961 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114964 transitions. [2022-01-18 11:07:25,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114964 transitions. [2022-01-18 11:07:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:25,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:25,998 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:25,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 11:07:25,998 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:25,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1168684712, now seen corresponding path program 49 times [2022-01-18 11:07:25,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:25,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715739522] [2022-01-18 11:07:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:25,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:26,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:26,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715739522] [2022-01-18 11:07:26,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715739522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:26,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:26,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:26,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192681332] [2022-01-18 11:07:26,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:26,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:26,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:26,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:26,518 INFO L87 Difference]: Start difference. First operand 41140 states and 114964 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:27,810 INFO L93 Difference]: Finished difference Result 59043 states and 163610 transitions. [2022-01-18 11:07:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:07:27,810 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:27,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:27,928 INFO L225 Difference]: With dead ends: 59043 [2022-01-18 11:07:27,928 INFO L226 Difference]: Without dead ends: 59043 [2022-01-18 11:07:27,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:27,928 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1392 mSDsluCounter, 4367 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:27,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 4761 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:28,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59043 states. [2022-01-18 11:07:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59043 to 41088. [2022-01-18 11:07:28,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41088 states, 41087 states have (on average 2.7940954559836446) internal successors, (114801), 41087 states have internal predecessors, (114801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41088 states to 41088 states and 114801 transitions. [2022-01-18 11:07:28,883 INFO L78 Accepts]: Start accepts. Automaton has 41088 states and 114801 transitions. Word has length 231 [2022-01-18 11:07:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:28,884 INFO L470 AbstractCegarLoop]: Abstraction has 41088 states and 114801 transitions. [2022-01-18 11:07:28,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 41088 states and 114801 transitions. [2022-01-18 11:07:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:28,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:28,925 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:28,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 11:07:28,926 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:28,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:28,926 INFO L85 PathProgramCache]: Analyzing trace with hash 179518346, now seen corresponding path program 50 times [2022-01-18 11:07:28,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:28,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898146958] [2022-01-18 11:07:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:28,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:29,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:29,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898146958] [2022-01-18 11:07:29,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898146958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:29,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:29,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:29,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524279075] [2022-01-18 11:07:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:29,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:29,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:29,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:29,396 INFO L87 Difference]: Start difference. First operand 41088 states and 114801 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:30,897 INFO L93 Difference]: Finished difference Result 59364 states and 164667 transitions. [2022-01-18 11:07:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:07:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:31,008 INFO L225 Difference]: With dead ends: 59364 [2022-01-18 11:07:31,008 INFO L226 Difference]: Without dead ends: 59364 [2022-01-18 11:07:31,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=866, Invalid=2556, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:07:31,008 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1525 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:31,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 4121 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59364 states. [2022-01-18 11:07:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59364 to 41096. [2022-01-18 11:07:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41095 states have (on average 2.7941842073244922) internal successors, (114827), 41095 states have internal predecessors, (114827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 114827 transitions. [2022-01-18 11:07:31,831 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 114827 transitions. Word has length 231 [2022-01-18 11:07:31,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:31,831 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 114827 transitions. [2022-01-18 11:07:31,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 114827 transitions. [2022-01-18 11:07:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:31,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:31,869 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:31,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 11:07:31,869 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:31,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash -678636848, now seen corresponding path program 51 times [2022-01-18 11:07:31,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:31,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081294364] [2022-01-18 11:07:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:31,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:32,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081294364] [2022-01-18 11:07:32,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081294364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:32,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:32,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:32,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370143131] [2022-01-18 11:07:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:32,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:32,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:32,298 INFO L87 Difference]: Start difference. First operand 41096 states and 114827 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:33,759 INFO L93 Difference]: Finished difference Result 60580 states and 168187 transitions. [2022-01-18 11:07:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:33,870 INFO L225 Difference]: With dead ends: 60580 [2022-01-18 11:07:33,870 INFO L226 Difference]: Without dead ends: 60580 [2022-01-18 11:07:33,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:07:33,871 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1204 mSDsluCounter, 3917 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:33,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 4309 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:07:33,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60580 states. [2022-01-18 11:07:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60580 to 41100. [2022-01-18 11:07:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 2.794374558991703) internal successors, (114846), 41099 states have internal predecessors, (114846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 114846 transitions. [2022-01-18 11:07:34,912 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 114846 transitions. Word has length 231 [2022-01-18 11:07:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:34,912 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 114846 transitions. [2022-01-18 11:07:34,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 114846 transitions. [2022-01-18 11:07:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:34,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:34,953 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:34,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 11:07:34,954 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:34,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1141667206, now seen corresponding path program 52 times [2022-01-18 11:07:34,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:34,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361205663] [2022-01-18 11:07:34,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:34,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:35,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:35,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361205663] [2022-01-18 11:07:35,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361205663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:35,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:35,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:35,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218694461] [2022-01-18 11:07:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:35,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:35,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:35,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:35,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:35,611 INFO L87 Difference]: Start difference. First operand 41100 states and 114846 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:37,005 INFO L93 Difference]: Finished difference Result 59748 states and 165853 transitions. [2022-01-18 11:07:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:37,005 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:37,111 INFO L225 Difference]: With dead ends: 59748 [2022-01-18 11:07:37,111 INFO L226 Difference]: Without dead ends: 59748 [2022-01-18 11:07:37,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=782, Invalid=2298, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:07:37,112 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1395 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:37,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 4158 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:07:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59748 states. [2022-01-18 11:07:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59748 to 41092. [2022-01-18 11:07:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41092 states, 41091 states have (on average 2.794091163515125) internal successors, (114812), 41091 states have internal predecessors, (114812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41092 states to 41092 states and 114812 transitions. [2022-01-18 11:07:37,867 INFO L78 Accepts]: Start accepts. Automaton has 41092 states and 114812 transitions. Word has length 231 [2022-01-18 11:07:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:37,867 INFO L470 AbstractCegarLoop]: Abstraction has 41092 states and 114812 transitions. [2022-01-18 11:07:37,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 41092 states and 114812 transitions. [2022-01-18 11:07:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:37,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:37,906 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:37,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 11:07:37,906 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1463599584, now seen corresponding path program 53 times [2022-01-18 11:07:37,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:37,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517884574] [2022-01-18 11:07:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:37,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:38,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:38,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517884574] [2022-01-18 11:07:38,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517884574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:38,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:38,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:38,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718504209] [2022-01-18 11:07:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:38,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:38,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:38,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:38,340 INFO L87 Difference]: Start difference. First operand 41092 states and 114812 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:39,819 INFO L93 Difference]: Finished difference Result 61000 states and 169342 transitions. [2022-01-18 11:07:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:39,936 INFO L225 Difference]: With dead ends: 61000 [2022-01-18 11:07:39,936 INFO L226 Difference]: Without dead ends: 61000 [2022-01-18 11:07:39,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=810, Invalid=2382, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:07:39,936 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1370 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:39,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 4677 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61000 states. [2022-01-18 11:07:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61000 to 41100. [2022-01-18 11:07:40,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 2.794374558991703) internal successors, (114846), 41099 states have internal predecessors, (114846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 114846 transitions. [2022-01-18 11:07:40,826 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 114846 transitions. Word has length 231 [2022-01-18 11:07:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:40,826 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 114846 transitions. [2022-01-18 11:07:40,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 114846 transitions. [2022-01-18 11:07:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:40,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:40,866 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:40,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 11:07:40,866 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash 356704470, now seen corresponding path program 54 times [2022-01-18 11:07:40,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:40,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534648083] [2022-01-18 11:07:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:40,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:41,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:41,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534648083] [2022-01-18 11:07:41,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534648083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:41,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:41,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:41,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530895734] [2022-01-18 11:07:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:41,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:41,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:41,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:41,346 INFO L87 Difference]: Start difference. First operand 41100 states and 114846 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:42,870 INFO L93 Difference]: Finished difference Result 61192 states and 169880 transitions. [2022-01-18 11:07:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:42,871 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:42,982 INFO L225 Difference]: With dead ends: 61192 [2022-01-18 11:07:42,982 INFO L226 Difference]: Without dead ends: 61192 [2022-01-18 11:07:42,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=783, Invalid=2297, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:07:42,982 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1376 mSDsluCounter, 4769 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:42,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 5138 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:43,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61192 states. [2022-01-18 11:07:43,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61192 to 41096. [2022-01-18 11:07:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41095 states have (on average 2.7941842073244922) internal successors, (114827), 41095 states have internal predecessors, (114827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 114827 transitions. [2022-01-18 11:07:43,787 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 114827 transitions. Word has length 231 [2022-01-18 11:07:43,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:43,787 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 114827 transitions. [2022-01-18 11:07:43,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 114827 transitions. [2022-01-18 11:07:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:43,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:43,826 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:43,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 11:07:43,827 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash 602816458, now seen corresponding path program 55 times [2022-01-18 11:07:43,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:43,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314440312] [2022-01-18 11:07:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:43,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:44,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:44,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314440312] [2022-01-18 11:07:44,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314440312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:44,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:44,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:44,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401580283] [2022-01-18 11:07:44,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:44,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:44,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:44,413 INFO L87 Difference]: Start difference. First operand 41096 states and 114827 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:45,715 INFO L93 Difference]: Finished difference Result 60031 states and 166459 transitions. [2022-01-18 11:07:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:45,824 INFO L225 Difference]: With dead ends: 60031 [2022-01-18 11:07:45,824 INFO L226 Difference]: Without dead ends: 60031 [2022-01-18 11:07:45,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:07:45,825 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1408 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 4222 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:45,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 4222 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:07:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2022-01-18 11:07:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 41040. [2022-01-18 11:07:46,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41040 states, 41039 states have (on average 2.7940495626111748) internal successors, (114665), 41039 states have internal predecessors, (114665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41040 states to 41040 states and 114665 transitions. [2022-01-18 11:07:46,738 INFO L78 Accepts]: Start accepts. Automaton has 41040 states and 114665 transitions. Word has length 231 [2022-01-18 11:07:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:46,739 INFO L470 AbstractCegarLoop]: Abstraction has 41040 states and 114665 transitions. [2022-01-18 11:07:46,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 41040 states and 114665 transitions. [2022-01-18 11:07:46,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:46,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:46,777 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:46,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 11:07:46,777 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:46,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash -802389598, now seen corresponding path program 56 times [2022-01-18 11:07:46,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:46,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256800377] [2022-01-18 11:07:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:46,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:47,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256800377] [2022-01-18 11:07:47,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256800377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:47,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:47,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:47,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574265871] [2022-01-18 11:07:47,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:47,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:47,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:47,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:47,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:47,283 INFO L87 Difference]: Start difference. First operand 41040 states and 114665 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:49,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:49,480 INFO L93 Difference]: Finished difference Result 67772 states and 187297 transitions. [2022-01-18 11:07:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 11:07:49,480 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:49,598 INFO L225 Difference]: With dead ends: 67772 [2022-01-18 11:07:49,598 INFO L226 Difference]: Without dead ends: 66980 [2022-01-18 11:07:49,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1537, Invalid=4943, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 11:07:49,599 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1911 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:49,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1911 Valid, 5470 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:07:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66980 states. [2022-01-18 11:07:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66980 to 41136. [2022-01-18 11:07:50,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7942384830436366) internal successors, (114941), 41135 states have internal predecessors, (114941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114941 transitions. [2022-01-18 11:07:50,469 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114941 transitions. Word has length 231 [2022-01-18 11:07:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:50,469 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114941 transitions. [2022-01-18 11:07:50,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,470 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114941 transitions. [2022-01-18 11:07:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:50,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:50,505 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:50,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 11:07:50,505 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash -479848388, now seen corresponding path program 57 times [2022-01-18 11:07:50,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:50,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386182340] [2022-01-18 11:07:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:50,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:50,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:50,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386182340] [2022-01-18 11:07:50,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386182340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:50,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:50,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:50,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168558296] [2022-01-18 11:07:50,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:50,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:50,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:50,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:50,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:50,894 INFO L87 Difference]: Start difference. First operand 41136 states and 114941 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:52,864 INFO L93 Difference]: Finished difference Result 65055 states and 180485 transitions. [2022-01-18 11:07:52,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:07:52,864 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:52,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:52,986 INFO L225 Difference]: With dead ends: 65055 [2022-01-18 11:07:52,987 INFO L226 Difference]: Without dead ends: 65055 [2022-01-18 11:07:52,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:07:52,987 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1811 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:52,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1811 Valid, 5904 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:07:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65055 states. [2022-01-18 11:07:53,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65055 to 41140. [2022-01-18 11:07:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7943314130144143) internal successors, (114956), 41139 states have internal predecessors, (114956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114956 transitions. [2022-01-18 11:07:53,835 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114956 transitions. Word has length 231 [2022-01-18 11:07:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:53,835 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114956 transitions. [2022-01-18 11:07:53,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114956 transitions. [2022-01-18 11:07:53,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:53,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:53,871 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:53,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 11:07:53,871 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1338003582, now seen corresponding path program 58 times [2022-01-18 11:07:53,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:53,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352751982] [2022-01-18 11:07:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:53,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:54,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:54,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352751982] [2022-01-18 11:07:54,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352751982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:54,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:54,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:54,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412754269] [2022-01-18 11:07:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:54,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:54,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:54,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:54,252 INFO L87 Difference]: Start difference. First operand 41140 states and 114956 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:56,063 INFO L93 Difference]: Finished difference Result 64407 states and 178667 transitions. [2022-01-18 11:07:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:07:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:56,188 INFO L225 Difference]: With dead ends: 64407 [2022-01-18 11:07:56,188 INFO L226 Difference]: Without dead ends: 64407 [2022-01-18 11:07:56,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=965, Invalid=2941, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:07:56,189 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1700 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 5287 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:56,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1700 Valid, 5287 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:07:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64407 states. [2022-01-18 11:07:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64407 to 41144. [2022-01-18 11:07:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7945215468001847) internal successors, (114975), 41143 states have internal predecessors, (114975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114975 transitions. [2022-01-18 11:07:57,048 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114975 transitions. Word has length 231 [2022-01-18 11:07:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:57,048 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114975 transitions. [2022-01-18 11:07:57,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114975 transitions. [2022-01-18 11:07:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:07:57,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:57,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:57,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 11:07:57,087 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:57,087 INFO L85 PathProgramCache]: Analyzing trace with hash 482300472, now seen corresponding path program 59 times [2022-01-18 11:07:57,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:57,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50667997] [2022-01-18 11:07:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:57,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:57,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:57,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50667997] [2022-01-18 11:07:57,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50667997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:57,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:57,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:07:57,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198056826] [2022-01-18 11:07:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:57,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:07:57,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:07:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:07:57,633 INFO L87 Difference]: Start difference. First operand 41144 states and 114975 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:59,350 INFO L93 Difference]: Finished difference Result 63730 states and 176728 transitions. [2022-01-18 11:07:59,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:07:59,350 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:07:59,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:59,476 INFO L225 Difference]: With dead ends: 63730 [2022-01-18 11:07:59,476 INFO L226 Difference]: Without dead ends: 63730 [2022-01-18 11:07:59,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=975, Invalid=2931, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:07:59,477 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1695 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:59,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 5222 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:07:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63730 states. [2022-01-18 11:08:00,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63730 to 41132. [2022-01-18 11:08:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 41131 states have (on average 2.7941455349979334) internal successors, (114926), 41131 states have internal predecessors, (114926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 114926 transitions. [2022-01-18 11:08:00,334 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 114926 transitions. Word has length 231 [2022-01-18 11:08:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:00,335 INFO L470 AbstractCegarLoop]: Abstraction has 41132 states and 114926 transitions. [2022-01-18 11:08:00,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 114926 transitions. [2022-01-18 11:08:00,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:00,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:00,488 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:00,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 11:08:00,489 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2101650344, now seen corresponding path program 60 times [2022-01-18 11:08:00,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:00,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729576932] [2022-01-18 11:08:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:00,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:00,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:00,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729576932] [2022-01-18 11:08:00,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729576932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:00,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:00,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:00,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537408423] [2022-01-18 11:08:00,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:00,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:00,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:00,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:00,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:00,905 INFO L87 Difference]: Start difference. First operand 41132 states and 114926 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:02,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:02,526 INFO L93 Difference]: Finished difference Result 65475 states and 181640 transitions. [2022-01-18 11:08:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:08:02,527 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:02,792 INFO L225 Difference]: With dead ends: 65475 [2022-01-18 11:08:02,792 INFO L226 Difference]: Without dead ends: 65475 [2022-01-18 11:08:02,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1015, Invalid=3145, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:08:02,793 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1676 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:02,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1676 Valid, 4725 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65475 states. [2022-01-18 11:08:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65475 to 41140. [2022-01-18 11:08:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7942341816767544) internal successors, (114952), 41139 states have internal predecessors, (114952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114952 transitions. [2022-01-18 11:08:03,631 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114952 transitions. Word has length 231 [2022-01-18 11:08:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:03,631 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114952 transitions. [2022-01-18 11:08:03,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114952 transitions. [2022-01-18 11:08:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:03,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:03,670 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:03,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 11:08:03,671 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1243495150, now seen corresponding path program 61 times [2022-01-18 11:08:03,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:03,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868123258] [2022-01-18 11:08:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:03,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:04,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:04,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868123258] [2022-01-18 11:08:04,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868123258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:04,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:04,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:04,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240925116] [2022-01-18 11:08:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:04,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:04,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:04,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:04,113 INFO L87 Difference]: Start difference. First operand 41140 states and 114952 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:05,898 INFO L93 Difference]: Finished difference Result 66663 states and 185087 transitions. [2022-01-18 11:08:05,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:05,899 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:05,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:06,020 INFO L225 Difference]: With dead ends: 66663 [2022-01-18 11:08:06,020 INFO L226 Difference]: Without dead ends: 66663 [2022-01-18 11:08:06,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=963, Invalid=2943, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:08:06,021 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1333 mSDsluCounter, 5146 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 5552 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:06,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 5552 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:06,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66663 states. [2022-01-18 11:08:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66663 to 41144. [2022-01-18 11:08:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7944243249155383) internal successors, (114971), 41143 states have internal predecessors, (114971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114971 transitions. [2022-01-18 11:08:06,875 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114971 transitions. Word has length 231 [2022-01-18 11:08:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:06,876 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114971 transitions. [2022-01-18 11:08:06,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114971 transitions. [2022-01-18 11:08:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:06,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:06,912 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:06,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 11:08:06,912 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1231168092, now seen corresponding path program 62 times [2022-01-18 11:08:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:06,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404042935] [2022-01-18 11:08:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:06,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:07,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:07,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404042935] [2022-01-18 11:08:07,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404042935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:07,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:07,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:07,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209543185] [2022-01-18 11:08:07,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:07,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:07,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:07,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:07,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:07,311 INFO L87 Difference]: Start difference. First operand 41144 states and 114971 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:09,052 INFO L93 Difference]: Finished difference Result 65986 states and 183148 transitions. [2022-01-18 11:08:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:09,052 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:09,171 INFO L225 Difference]: With dead ends: 65986 [2022-01-18 11:08:09,171 INFO L226 Difference]: Without dead ends: 65986 [2022-01-18 11:08:09,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=968, Invalid=2938, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:08:09,172 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1640 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:09,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1640 Valid, 4792 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:08:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65986 states. [2022-01-18 11:08:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65986 to 41136. [2022-01-18 11:08:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7941412422511243) internal successors, (114937), 41135 states have internal predecessors, (114937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114937 transitions. [2022-01-18 11:08:10,096 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114937 transitions. Word has length 231 [2022-01-18 11:08:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:10,096 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114937 transitions. [2022-01-18 11:08:10,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114937 transitions. [2022-01-18 11:08:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:10,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:10,133 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:10,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 11:08:10,133 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:10,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:10,134 INFO L85 PathProgramCache]: Analyzing trace with hash 458532414, now seen corresponding path program 63 times [2022-01-18 11:08:10,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:10,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266335636] [2022-01-18 11:08:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:10,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:10,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:10,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266335636] [2022-01-18 11:08:10,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266335636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:10,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:10,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:10,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060957701] [2022-01-18 11:08:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:10,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:10,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:10,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:10,526 INFO L87 Difference]: Start difference. First operand 41136 states and 114937 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:12,256 INFO L93 Difference]: Finished difference Result 64775 states and 179671 transitions. [2022-01-18 11:08:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:08:12,257 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:12,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:12,375 INFO L225 Difference]: With dead ends: 64775 [2022-01-18 11:08:12,375 INFO L226 Difference]: Without dead ends: 64775 [2022-01-18 11:08:12,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:08:12,376 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1245 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:12,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 5621 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64775 states. [2022-01-18 11:08:13,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64775 to 41144. [2022-01-18 11:08:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7944243249155383) internal successors, (114971), 41143 states have internal predecessors, (114971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114971 transitions. [2022-01-18 11:08:13,223 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114971 transitions. Word has length 231 [2022-01-18 11:08:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:13,224 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114971 transitions. [2022-01-18 11:08:13,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114971 transitions. [2022-01-18 11:08:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:13,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:13,260 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:13,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 11:08:13,260 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:13,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2016130828, now seen corresponding path program 64 times [2022-01-18 11:08:13,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:13,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100194168] [2022-01-18 11:08:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:13,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:13,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:13,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100194168] [2022-01-18 11:08:13,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100194168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:13,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:13,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:13,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440636135] [2022-01-18 11:08:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:13,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:13,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:13,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:13,819 INFO L87 Difference]: Start difference. First operand 41144 states and 114971 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:15,415 INFO L93 Difference]: Finished difference Result 65122 states and 180604 transitions. [2022-01-18 11:08:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:08:15,415 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:15,536 INFO L225 Difference]: With dead ends: 65122 [2022-01-18 11:08:15,536 INFO L226 Difference]: Without dead ends: 65122 [2022-01-18 11:08:15,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=908, Invalid=2752, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:08:15,537 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1413 mSDsluCounter, 5060 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 5449 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:15,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 5449 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65122 states. [2022-01-18 11:08:16,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65122 to 41140. [2022-01-18 11:08:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7942341816767544) internal successors, (114952), 41139 states have internal predecessors, (114952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114952 transitions. [2022-01-18 11:08:16,525 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114952 transitions. Word has length 231 [2022-01-18 11:08:16,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:16,525 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114952 transitions. [2022-01-18 11:08:16,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:16,525 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114952 transitions. [2022-01-18 11:08:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:16,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:16,562 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:16,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 11:08:16,562 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:16,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1770018840, now seen corresponding path program 65 times [2022-01-18 11:08:16,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:16,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157834307] [2022-01-18 11:08:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:16,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:17,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:17,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157834307] [2022-01-18 11:08:17,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157834307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:17,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:17,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:17,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734195298] [2022-01-18 11:08:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:17,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:17,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:17,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:17,079 INFO L87 Difference]: Start difference. First operand 41140 states and 114952 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:18,760 INFO L93 Difference]: Finished difference Result 63682 states and 176410 transitions. [2022-01-18 11:08:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:18,878 INFO L225 Difference]: With dead ends: 63682 [2022-01-18 11:08:18,878 INFO L226 Difference]: Without dead ends: 63682 [2022-01-18 11:08:18,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=966, Invalid=2940, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:08:18,879 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1502 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:18,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 5768 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:08:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63682 states. [2022-01-18 11:08:19,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63682 to 41080. [2022-01-18 11:08:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41080 states, 41079 states have (on average 2.794104043428516) internal successors, (114779), 41079 states have internal predecessors, (114779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41080 states to 41080 states and 114779 transitions. [2022-01-18 11:08:19,893 INFO L78 Accepts]: Start accepts. Automaton has 41080 states and 114779 transitions. Word has length 231 [2022-01-18 11:08:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:19,893 INFO L470 AbstractCegarLoop]: Abstraction has 41080 states and 114779 transitions. [2022-01-18 11:08:19,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 41080 states and 114779 transitions. [2022-01-18 11:08:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:19,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:19,926 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:19,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 11:08:19,926 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076682, now seen corresponding path program 66 times [2022-01-18 11:08:19,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:19,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694950111] [2022-01-18 11:08:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:19,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:20,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:20,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694950111] [2022-01-18 11:08:20,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694950111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:20,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:20,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:20,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415097710] [2022-01-18 11:08:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:20,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:20,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:20,232 INFO L87 Difference]: Start difference. First operand 41080 states and 114779 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:21,246 INFO L93 Difference]: Finished difference Result 50083 states and 138999 transitions. [2022-01-18 11:08:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:21,343 INFO L225 Difference]: With dead ends: 50083 [2022-01-18 11:08:21,344 INFO L226 Difference]: Without dead ends: 49411 [2022-01-18 11:08:21,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:21,344 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1148 mSDsluCounter, 4992 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:21,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 5321 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:08:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49411 states. [2022-01-18 11:08:21,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49411 to 41080. [2022-01-18 11:08:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41080 states, 41079 states have (on average 2.794006670074734) internal successors, (114775), 41079 states have internal predecessors, (114775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41080 states to 41080 states and 114775 transitions. [2022-01-18 11:08:22,093 INFO L78 Accepts]: Start accepts. Automaton has 41080 states and 114775 transitions. Word has length 231 [2022-01-18 11:08:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:22,093 INFO L470 AbstractCegarLoop]: Abstraction has 41080 states and 114775 transitions. [2022-01-18 11:08:22,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,093 INFO L276 IsEmpty]: Start isEmpty. Operand 41080 states and 114775 transitions. [2022-01-18 11:08:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:22,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:22,130 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:22,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 11:08:22,131 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:22,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1726005878, now seen corresponding path program 67 times [2022-01-18 11:08:22,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:22,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325653170] [2022-01-18 11:08:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:22,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:22,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:22,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325653170] [2022-01-18 11:08:22,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325653170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:22,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:22,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:22,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034074240] [2022-01-18 11:08:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:22,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:22,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:22,442 INFO L87 Difference]: Start difference. First operand 41080 states and 114775 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:23,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:23,807 INFO L93 Difference]: Finished difference Result 53696 states and 148962 transitions. [2022-01-18 11:08:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:08:23,807 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:23,909 INFO L225 Difference]: With dead ends: 53696 [2022-01-18 11:08:23,909 INFO L226 Difference]: Without dead ends: 53080 [2022-01-18 11:08:23,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:08:23,909 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 1737 mSDsluCounter, 5341 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 5702 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:23,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1737 Valid, 5702 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53080 states. [2022-01-18 11:08:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53080 to 41128. [2022-01-18 11:08:24,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41128 states, 41127 states have (on average 2.794344347995234) internal successors, (114923), 41127 states have internal predecessors, (114923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41128 states to 41128 states and 114923 transitions. [2022-01-18 11:08:24,704 INFO L78 Accepts]: Start accepts. Automaton has 41128 states and 114923 transitions. Word has length 231 [2022-01-18 11:08:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:24,704 INFO L470 AbstractCegarLoop]: Abstraction has 41128 states and 114923 transitions. [2022-01-18 11:08:24,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,705 INFO L276 IsEmpty]: Start isEmpty. Operand 41128 states and 114923 transitions. [2022-01-18 11:08:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:24,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:24,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:24,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 11:08:24,743 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash 185798212, now seen corresponding path program 68 times [2022-01-18 11:08:24,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:24,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653984839] [2022-01-18 11:08:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:24,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:25,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653984839] [2022-01-18 11:08:25,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653984839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:25,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:25,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:25,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720635642] [2022-01-18 11:08:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:25,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:25,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:25,056 INFO L87 Difference]: Start difference. First operand 41128 states and 114923 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:26,473 INFO L93 Difference]: Finished difference Result 52826 states and 146760 transitions. [2022-01-18 11:08:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:26,572 INFO L225 Difference]: With dead ends: 52826 [2022-01-18 11:08:26,572 INFO L226 Difference]: Without dead ends: 52826 [2022-01-18 11:08:26,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:08:26,573 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1463 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:26,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 4570 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:26,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52826 states. [2022-01-18 11:08:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52826 to 41132. [2022-01-18 11:08:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 41131 states have (on average 2.794437285745545) internal successors, (114938), 41131 states have internal predecessors, (114938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 114938 transitions. [2022-01-18 11:08:27,419 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 114938 transitions. Word has length 231 [2022-01-18 11:08:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:27,419 INFO L470 AbstractCegarLoop]: Abstraction has 41132 states and 114938 transitions. [2022-01-18 11:08:27,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 114938 transitions. [2022-01-18 11:08:27,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:27,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:27,455 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:27,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 11:08:27,455 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:27,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:27,455 INFO L85 PathProgramCache]: Analyzing trace with hash -672356982, now seen corresponding path program 69 times [2022-01-18 11:08:27,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:27,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020203855] [2022-01-18 11:08:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:27,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:27,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:27,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020203855] [2022-01-18 11:08:27,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020203855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:27,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:27,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:27,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827228475] [2022-01-18 11:08:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:27,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:27,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:27,766 INFO L87 Difference]: Start difference. First operand 41132 states and 114938 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:28,958 INFO L93 Difference]: Finished difference Result 52322 states and 145354 transitions. [2022-01-18 11:08:28,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:08:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:29,056 INFO L225 Difference]: With dead ends: 52322 [2022-01-18 11:08:29,056 INFO L226 Difference]: Without dead ends: 52322 [2022-01-18 11:08:29,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=652, Invalid=2000, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:08:29,057 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1125 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:29,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 4740 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52322 states. [2022-01-18 11:08:29,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52322 to 41136. [2022-01-18 11:08:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7946274462136866) internal successors, (114957), 41135 states have internal predecessors, (114957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114957 transitions. [2022-01-18 11:08:29,877 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114957 transitions. Word has length 231 [2022-01-18 11:08:29,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:29,877 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114957 transitions. [2022-01-18 11:08:29,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,878 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114957 transitions. [2022-01-18 11:08:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:29,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:29,916 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:29,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 11:08:29,916 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1147947072, now seen corresponding path program 70 times [2022-01-18 11:08:29,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:29,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6242587] [2022-01-18 11:08:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:29,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:30,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:30,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6242587] [2022-01-18 11:08:30,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6242587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:30,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:30,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:30,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387839707] [2022-01-18 11:08:30,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:30,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:30,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:30,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:30,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:30,400 INFO L87 Difference]: Start difference. First operand 41136 states and 114957 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:31,749 INFO L93 Difference]: Finished difference Result 51265 states and 142492 transitions. [2022-01-18 11:08:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:08:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:31,855 INFO L225 Difference]: With dead ends: 51265 [2022-01-18 11:08:31,855 INFO L226 Difference]: Without dead ends: 51265 [2022-01-18 11:08:31,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=685, Invalid=2071, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:08:31,856 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1177 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 5217 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:31,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 5217 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51265 states. [2022-01-18 11:08:32,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51265 to 41116. [2022-01-18 11:08:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41116 states, 41115 states have (on average 2.793968138149094) internal successors, (114874), 41115 states have internal predecessors, (114874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41116 states to 41116 states and 114874 transitions. [2022-01-18 11:08:32,645 INFO L78 Accepts]: Start accepts. Automaton has 41116 states and 114874 transitions. Word has length 231 [2022-01-18 11:08:32,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:32,645 INFO L470 AbstractCegarLoop]: Abstraction has 41116 states and 114874 transitions. [2022-01-18 11:08:32,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 41116 states and 114874 transitions. [2022-01-18 11:08:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:32,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:32,684 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:32,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 11:08:32,684 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1222850758, now seen corresponding path program 71 times [2022-01-18 11:08:32,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:32,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063469560] [2022-01-18 11:08:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:32,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:33,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:33,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063469560] [2022-01-18 11:08:33,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063469560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:33,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:33,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:33,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938415966] [2022-01-18 11:08:33,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:33,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:33,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:33,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:33,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:33,009 INFO L87 Difference]: Start difference. First operand 41116 states and 114874 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:34,382 INFO L93 Difference]: Finished difference Result 55238 states and 153158 transitions. [2022-01-18 11:08:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:08:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:34,487 INFO L225 Difference]: With dead ends: 55238 [2022-01-18 11:08:34,487 INFO L226 Difference]: Without dead ends: 54622 [2022-01-18 11:08:34,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=637, Invalid=2119, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:08:34,487 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1390 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 5825 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:34,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 5825 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54622 states. [2022-01-18 11:08:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54622 to 41116. [2022-01-18 11:08:35,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41116 states, 41115 states have (on average 2.793092545299769) internal successors, (114838), 41115 states have internal predecessors, (114838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41116 states to 41116 states and 114838 transitions. [2022-01-18 11:08:35,319 INFO L78 Accepts]: Start accepts. Automaton has 41116 states and 114838 transitions. Word has length 231 [2022-01-18 11:08:35,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:35,320 INFO L470 AbstractCegarLoop]: Abstraction has 41116 states and 114838 transitions. [2022-01-18 11:08:35,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,320 INFO L276 IsEmpty]: Start isEmpty. Operand 41116 states and 114838 transitions. [2022-01-18 11:08:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:35,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:35,356 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:35,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 11:08:35,356 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1531908872, now seen corresponding path program 72 times [2022-01-18 11:08:35,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:35,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073021689] [2022-01-18 11:08:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:35,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:35,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073021689] [2022-01-18 11:08:35,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073021689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:35,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:35,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:35,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153835060] [2022-01-18 11:08:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:35,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:35,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:35,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:35,689 INFO L87 Difference]: Start difference. First operand 41116 states and 114838 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:37,203 INFO L93 Difference]: Finished difference Result 56568 states and 157294 transitions. [2022-01-18 11:08:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:37,310 INFO L225 Difference]: With dead ends: 56568 [2022-01-18 11:08:37,310 INFO L226 Difference]: Without dead ends: 56568 [2022-01-18 11:08:37,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=767, Invalid=2313, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:08:37,310 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1572 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 4630 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:37,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1572 Valid, 4630 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:37,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56568 states. [2022-01-18 11:08:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56568 to 41120. [2022-01-18 11:08:37,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41120 states, 41119 states have (on average 2.793185631946302) internal successors, (114853), 41119 states have internal predecessors, (114853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41120 states to 41120 states and 114853 transitions. [2022-01-18 11:08:38,178 INFO L78 Accepts]: Start accepts. Automaton has 41120 states and 114853 transitions. Word has length 231 [2022-01-18 11:08:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:38,178 INFO L470 AbstractCegarLoop]: Abstraction has 41120 states and 114853 transitions. [2022-01-18 11:08:38,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 41120 states and 114853 transitions. [2022-01-18 11:08:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:38,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:38,219 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:38,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 11:08:38,219 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash 673753678, now seen corresponding path program 73 times [2022-01-18 11:08:38,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:38,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930115951] [2022-01-18 11:08:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:38,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:38,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:38,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930115951] [2022-01-18 11:08:38,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930115951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:38,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:38,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:38,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531368915] [2022-01-18 11:08:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:38,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:38,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:38,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:38,568 INFO L87 Difference]: Start difference. First operand 41120 states and 114853 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:39,955 INFO L93 Difference]: Finished difference Result 55896 states and 155398 transitions. [2022-01-18 11:08:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:40,059 INFO L225 Difference]: With dead ends: 55896 [2022-01-18 11:08:40,060 INFO L226 Difference]: Without dead ends: 55896 [2022-01-18 11:08:40,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=744, Invalid=2226, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:08:40,060 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1563 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 5044 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:40,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1563 Valid, 5044 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55896 states. [2022-01-18 11:08:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55896 to 41124. [2022-01-18 11:08:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41124 states, 41123 states have (on average 2.7933759696520197) internal successors, (114872), 41123 states have internal predecessors, (114872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41124 states to 41124 states and 114872 transitions. [2022-01-18 11:08:40,884 INFO L78 Accepts]: Start accepts. Automaton has 41124 states and 114872 transitions. Word has length 231 [2022-01-18 11:08:40,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:40,884 INFO L470 AbstractCegarLoop]: Abstraction has 41124 states and 114872 transitions. [2022-01-18 11:08:40,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 41124 states and 114872 transitions. [2022-01-18 11:08:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:40,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:40,920 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:40,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 11:08:40,920 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1800909564, now seen corresponding path program 74 times [2022-01-18 11:08:40,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065781744] [2022-01-18 11:08:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:40,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:41,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:41,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065781744] [2022-01-18 11:08:41,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065781744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:41,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:41,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:41,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959947899] [2022-01-18 11:08:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:41,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:41,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:41,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:41,252 INFO L87 Difference]: Start difference. First operand 41124 states and 114872 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:42,770 INFO L93 Difference]: Finished difference Result 55052 states and 153043 transitions. [2022-01-18 11:08:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:42,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:42,873 INFO L225 Difference]: With dead ends: 55052 [2022-01-18 11:08:42,873 INFO L226 Difference]: Without dead ends: 55052 [2022-01-18 11:08:42,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=779, Invalid=2301, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:08:42,874 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1596 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 4878 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:42,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1596 Valid, 4878 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55052 states. [2022-01-18 11:08:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55052 to 41068. [2022-01-18 11:08:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41068 states, 41067 states have (on average 2.7927533055738185) internal successors, (114690), 41067 states have internal predecessors, (114690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41068 states to 41068 states and 114690 transitions. [2022-01-18 11:08:43,664 INFO L78 Accepts]: Start accepts. Automaton has 41068 states and 114690 transitions. Word has length 231 [2022-01-18 11:08:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:43,664 INFO L470 AbstractCegarLoop]: Abstraction has 41068 states and 114690 transitions. [2022-01-18 11:08:43,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 41068 states and 114690 transitions. [2022-01-18 11:08:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:43,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:43,700 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:43,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 11:08:43,701 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:43,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 357034238, now seen corresponding path program 75 times [2022-01-18 11:08:43,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:43,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331929133] [2022-01-18 11:08:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:43,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:44,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:44,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331929133] [2022-01-18 11:08:44,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331929133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:44,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:44,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877012596] [2022-01-18 11:08:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:44,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:44,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:44,089 INFO L87 Difference]: Start difference. First operand 41068 states and 114690 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:45,666 INFO L93 Difference]: Finished difference Result 52691 states and 146374 transitions. [2022-01-18 11:08:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:08:45,667 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:45,768 INFO L225 Difference]: With dead ends: 52691 [2022-01-18 11:08:45,768 INFO L226 Difference]: Without dead ends: 52691 [2022-01-18 11:08:45,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=825, Invalid=2481, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:08:45,769 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1336 mSDsluCounter, 4719 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:45,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 5055 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52691 states. [2022-01-18 11:08:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52691 to 41068. [2022-01-18 11:08:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41068 states, 41067 states have (on average 2.7927533055738185) internal successors, (114690), 41067 states have internal predecessors, (114690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41068 states to 41068 states and 114690 transitions. [2022-01-18 11:08:46,660 INFO L78 Accepts]: Start accepts. Automaton has 41068 states and 114690 transitions. Word has length 231 [2022-01-18 11:08:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:46,661 INFO L470 AbstractCegarLoop]: Abstraction has 41068 states and 114690 transitions. [2022-01-18 11:08:46,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 41068 states and 114690 transitions. [2022-01-18 11:08:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:46,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:46,698 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:46,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 11:08:46,698 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -501120956, now seen corresponding path program 76 times [2022-01-18 11:08:46,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:46,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278529797] [2022-01-18 11:08:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:46,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:47,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:47,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278529797] [2022-01-18 11:08:47,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278529797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:47,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:47,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:47,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192174113] [2022-01-18 11:08:47,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:47,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:47,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:47,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:47,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:47,085 INFO L87 Difference]: Start difference. First operand 41068 states and 114690 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:48,432 INFO L93 Difference]: Finished difference Result 53367 states and 148357 transitions. [2022-01-18 11:08:48,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:48,433 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:48,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:48,536 INFO L225 Difference]: With dead ends: 53367 [2022-01-18 11:08:48,537 INFO L226 Difference]: Without dead ends: 53367 [2022-01-18 11:08:48,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=802, Invalid=2390, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:08:48,537 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1155 mSDsluCounter, 4510 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:48,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 4852 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53367 states. [2022-01-18 11:08:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53367 to 41072. [2022-01-18 11:08:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41072 states, 41071 states have (on average 2.7929439263714055) internal successors, (114709), 41071 states have internal predecessors, (114709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41072 states to 41072 states and 114709 transitions. [2022-01-18 11:08:49,476 INFO L78 Accepts]: Start accepts. Automaton has 41072 states and 114709 transitions. Word has length 231 [2022-01-18 11:08:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:49,477 INFO L470 AbstractCegarLoop]: Abstraction has 41072 states and 114709 transitions. [2022-01-18 11:08:49,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 41072 states and 114709 transitions. [2022-01-18 11:08:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:49,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:49,513 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:49,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 11:08:49,513 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1319183098, now seen corresponding path program 77 times [2022-01-18 11:08:49,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:49,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474349003] [2022-01-18 11:08:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:49,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:50,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:50,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474349003] [2022-01-18 11:08:50,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474349003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:50,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:50,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:50,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635736544] [2022-01-18 11:08:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:50,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:50,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:50,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:50,102 INFO L87 Difference]: Start difference. First operand 41072 states and 114709 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:51,379 INFO L93 Difference]: Finished difference Result 52775 states and 146711 transitions. [2022-01-18 11:08:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:08:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:51,476 INFO L225 Difference]: With dead ends: 52775 [2022-01-18 11:08:51,477 INFO L226 Difference]: Without dead ends: 52775 [2022-01-18 11:08:51,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=832, Invalid=2474, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:08:51,477 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1395 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:51,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 3931 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:08:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52775 states. [2022-01-18 11:08:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52775 to 41064. [2022-01-18 11:08:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41064 states, 41063 states have (on average 2.7926600589338335) internal successors, (114675), 41063 states have internal predecessors, (114675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41064 states to 41064 states and 114675 transitions. [2022-01-18 11:08:52,346 INFO L78 Accepts]: Start accepts. Automaton has 41064 states and 114675 transitions. Word has length 231 [2022-01-18 11:08:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:52,346 INFO L470 AbstractCegarLoop]: Abstraction has 41064 states and 114675 transitions. [2022-01-18 11:08:52,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 41064 states and 114675 transitions. [2022-01-18 11:08:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:52,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:52,381 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:52,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 11:08:52,382 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:52,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:52,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1286083692, now seen corresponding path program 78 times [2022-01-18 11:08:52,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:52,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590645880] [2022-01-18 11:08:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:52,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:52,769 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:52,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:52,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590645880] [2022-01-18 11:08:52,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590645880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:52,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:52,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:52,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203466049] [2022-01-18 11:08:52,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:52,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:52,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:52,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:52,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:52,770 INFO L87 Difference]: Start difference. First operand 41064 states and 114675 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:54,103 INFO L93 Difference]: Finished difference Result 52155 states and 144876 transitions. [2022-01-18 11:08:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:54,104 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:54,202 INFO L225 Difference]: With dead ends: 52155 [2022-01-18 11:08:54,203 INFO L226 Difference]: Without dead ends: 52155 [2022-01-18 11:08:54,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=741, Invalid=2229, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:08:54,203 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1515 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:54,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 4687 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:08:54,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52155 states. [2022-01-18 11:08:54,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52155 to 41064. [2022-01-18 11:08:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41064 states, 41063 states have (on average 2.7926600589338335) internal successors, (114675), 41063 states have internal predecessors, (114675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41064 states to 41064 states and 114675 transitions. [2022-01-18 11:08:55,076 INFO L78 Accepts]: Start accepts. Automaton has 41064 states and 114675 transitions. Word has length 231 [2022-01-18 11:08:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:55,076 INFO L470 AbstractCegarLoop]: Abstraction has 41064 states and 114675 transitions. [2022-01-18 11:08:55,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41064 states and 114675 transitions. [2022-01-18 11:08:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:55,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:55,113 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:55,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 11:08:55,113 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:55,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash 534220362, now seen corresponding path program 79 times [2022-01-18 11:08:55,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:55,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288331505] [2022-01-18 11:08:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:55,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:55,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288331505] [2022-01-18 11:08:55,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288331505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:55,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:55,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:55,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704697477] [2022-01-18 11:08:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:55,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:55,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:55,494 INFO L87 Difference]: Start difference. First operand 41064 states and 114675 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:56,724 INFO L93 Difference]: Finished difference Result 52207 states and 145029 transitions. [2022-01-18 11:08:56,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:56,724 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:56,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:56,818 INFO L225 Difference]: With dead ends: 52207 [2022-01-18 11:08:56,819 INFO L226 Difference]: Without dead ends: 52207 [2022-01-18 11:08:56,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=771, Invalid=2309, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 11:08:56,819 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1479 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:56,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 4034 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:08:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52207 states. [2022-01-18 11:08:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52207 to 41060. [2022-01-18 11:08:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41060 states, 41059 states have (on average 2.7924693733408024) internal successors, (114656), 41059 states have internal predecessors, (114656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41060 states to 41060 states and 114656 transitions. [2022-01-18 11:08:57,644 INFO L78 Accepts]: Start accepts. Automaton has 41060 states and 114656 transitions. Word has length 231 [2022-01-18 11:08:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:57,644 INFO L470 AbstractCegarLoop]: Abstraction has 41060 states and 114656 transitions. [2022-01-18 11:08:57,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 41060 states and 114656 transitions. [2022-01-18 11:08:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 11:08:57,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:57,681 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:57,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 11:08:57,681 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash 780332350, now seen corresponding path program 80 times [2022-01-18 11:08:57,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:57,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627100453] [2022-01-18 11:08:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:57,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:58,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:58,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627100453] [2022-01-18 11:08:58,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627100453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:58,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:58,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:08:58,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486956345] [2022-01-18 11:08:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:58,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:08:58,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:08:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:08:58,080 INFO L87 Difference]: Start difference. First operand 41060 states and 114656 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:59,566 INFO L93 Difference]: Finished difference Result 51059 states and 141799 transitions. [2022-01-18 11:08:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:08:59,566 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 11:08:59,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:59,663 INFO L225 Difference]: With dead ends: 51059 [2022-01-18 11:08:59,663 INFO L226 Difference]: Without dead ends: 51059 [2022-01-18 11:08:59,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:08:59,664 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1627 mSDsluCounter, 3990 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:59,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1627 Valid, 4325 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:08:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51059 states. [2022-01-18 11:09:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51059 to 41040. [2022-01-18 11:09:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41040 states, 41039 states have (on average 2.7922951338970248) internal successors, (114593), 41039 states have internal predecessors, (114593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41040 states to 41040 states and 114593 transitions. [2022-01-18 11:09:00,487 INFO L78 Accepts]: Start accepts. Automaton has 41040 states and 114593 transitions. Word has length 231 [2022-01-18 11:09:00,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:00,487 INFO L470 AbstractCegarLoop]: Abstraction has 41040 states and 114593 transitions. [2022-01-18 11:09:00,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:00,487 INFO L276 IsEmpty]: Start isEmpty. Operand 41040 states and 114593 transitions. [2022-01-18 11:09:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:00,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:00,531 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:00,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 11:09:00,531 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:00,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash 767593789, now seen corresponding path program 1 times [2022-01-18 11:09:00,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:00,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775658676] [2022-01-18 11:09:00,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:00,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:09:00,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:00,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775658676] [2022-01-18 11:09:00,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775658676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:00,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:00,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:00,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566993827] [2022-01-18 11:09:00,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:00,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:00,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:00,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:00,946 INFO L87 Difference]: Start difference. First operand 41040 states and 114593 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:02,529 INFO L93 Difference]: Finished difference Result 49690 states and 137572 transitions. [2022-01-18 11:09:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:09:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:02,605 INFO L225 Difference]: With dead ends: 49690 [2022-01-18 11:09:02,606 INFO L226 Difference]: Without dead ends: 48787 [2022-01-18 11:09:02,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=577, Invalid=2075, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:09:02,606 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1608 mSDsluCounter, 4244 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:02,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 4517 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:09:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48787 states. [2022-01-18 11:09:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48787 to 40907. [2022-01-18 11:09:03,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40907 states, 40906 states have (on average 2.793917762675402) internal successors, (114288), 40906 states have internal predecessors, (114288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40907 states to 40907 states and 114288 transitions. [2022-01-18 11:09:03,234 INFO L78 Accepts]: Start accepts. Automaton has 40907 states and 114288 transitions. Word has length 243 [2022-01-18 11:09:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:03,234 INFO L470 AbstractCegarLoop]: Abstraction has 40907 states and 114288 transitions. [2022-01-18 11:09:03,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 40907 states and 114288 transitions. [2022-01-18 11:09:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:03,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:03,276 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:03,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 11:09:03,276 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:03,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash -99411609, now seen corresponding path program 1 times [2022-01-18 11:09:03,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:03,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285650120] [2022-01-18 11:09:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:03,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-01-18 11:09:03,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:03,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285650120] [2022-01-18 11:09:03,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285650120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:03,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:03,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:03,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057053136] [2022-01-18 11:09:03,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:03,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:03,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:03,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:03,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:03,875 INFO L87 Difference]: Start difference. First operand 40907 states and 114288 transitions. Second operand has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:05,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:05,919 INFO L93 Difference]: Finished difference Result 56033 states and 155517 transitions. [2022-01-18 11:09:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:05,920 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:05,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:06,024 INFO L225 Difference]: With dead ends: 56033 [2022-01-18 11:09:06,024 INFO L226 Difference]: Without dead ends: 56033 [2022-01-18 11:09:06,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=964, Invalid=3326, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:09:06,025 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 2097 mSDsluCounter, 5913 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:06,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2097 Valid, 6313 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56033 states. [2022-01-18 11:09:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56033 to 41435. [2022-01-18 11:09:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41435 states, 41434 states have (on average 2.7933581116957087) internal successors, (115740), 41434 states have internal predecessors, (115740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41435 states to 41435 states and 115740 transitions. [2022-01-18 11:09:06,822 INFO L78 Accepts]: Start accepts. Automaton has 41435 states and 115740 transitions. Word has length 243 [2022-01-18 11:09:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:06,822 INFO L470 AbstractCegarLoop]: Abstraction has 41435 states and 115740 transitions. [2022-01-18 11:09:06,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 41435 states and 115740 transitions. [2022-01-18 11:09:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:06,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:06,867 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:06,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 11:09:06,867 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:06,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash -594885877, now seen corresponding path program 2 times [2022-01-18 11:09:06,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:06,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655482183] [2022-01-18 11:09:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:06,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:07,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:07,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655482183] [2022-01-18 11:09:07,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655482183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:07,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:07,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:07,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383996809] [2022-01-18 11:09:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:07,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:07,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:07,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:07,472 INFO L87 Difference]: Start difference. First operand 41435 states and 115740 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:09,491 INFO L93 Difference]: Finished difference Result 51106 states and 141658 transitions. [2022-01-18 11:09:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:09:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:09,586 INFO L225 Difference]: With dead ends: 51106 [2022-01-18 11:09:09,586 INFO L226 Difference]: Without dead ends: 51106 [2022-01-18 11:09:09,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1009, Invalid=3547, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 11:09:09,586 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 2156 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:09,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2156 Valid, 5811 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:09,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51106 states. [2022-01-18 11:09:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51106 to 41618. [2022-01-18 11:09:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41618 states, 41617 states have (on average 2.793497849436528) internal successors, (116257), 41617 states have internal predecessors, (116257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41618 states to 41618 states and 116257 transitions. [2022-01-18 11:09:10,354 INFO L78 Accepts]: Start accepts. Automaton has 41618 states and 116257 transitions. Word has length 243 [2022-01-18 11:09:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:10,354 INFO L470 AbstractCegarLoop]: Abstraction has 41618 states and 116257 transitions. [2022-01-18 11:09:10,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 41618 states and 116257 transitions. [2022-01-18 11:09:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:10,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:10,397 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:10,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 11:09:10,397 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:10,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash -602588841, now seen corresponding path program 3 times [2022-01-18 11:09:10,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338169512] [2022-01-18 11:09:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:10,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:10,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338169512] [2022-01-18 11:09:10,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338169512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:10,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:10,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:10,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638031681] [2022-01-18 11:09:10,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:10,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:10,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:10,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:10,882 INFO L87 Difference]: Start difference. First operand 41618 states and 116257 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:13,128 INFO L93 Difference]: Finished difference Result 54628 states and 151626 transitions. [2022-01-18 11:09:13,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:09:13,129 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:13,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:13,227 INFO L225 Difference]: With dead ends: 54628 [2022-01-18 11:09:13,228 INFO L226 Difference]: Without dead ends: 54628 [2022-01-18 11:09:13,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1046, Invalid=3784, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:09:13,228 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 2359 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:13,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2359 Valid, 5914 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:13,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54628 states. [2022-01-18 11:09:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54628 to 41801. [2022-01-18 11:09:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41801 states, 41800 states have (on average 2.7936363636363635) internal successors, (116774), 41800 states have internal predecessors, (116774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41801 states to 41801 states and 116774 transitions. [2022-01-18 11:09:14,010 INFO L78 Accepts]: Start accepts. Automaton has 41801 states and 116774 transitions. Word has length 243 [2022-01-18 11:09:14,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:14,011 INFO L470 AbstractCegarLoop]: Abstraction has 41801 states and 116774 transitions. [2022-01-18 11:09:14,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:14,011 INFO L276 IsEmpty]: Start isEmpty. Operand 41801 states and 116774 transitions. [2022-01-18 11:09:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:14,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:14,054 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:14,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 11:09:14,054 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2022598195, now seen corresponding path program 4 times [2022-01-18 11:09:14,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:14,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438782901] [2022-01-18 11:09:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:14,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:14,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438782901] [2022-01-18 11:09:14,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438782901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:14,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:14,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:14,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078454481] [2022-01-18 11:09:14,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:14,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:14,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:14,526 INFO L87 Difference]: Start difference. First operand 41801 states and 116774 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:17,009 INFO L93 Difference]: Finished difference Result 62194 states and 172276 transitions. [2022-01-18 11:09:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:09:17,009 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:17,121 INFO L225 Difference]: With dead ends: 62194 [2022-01-18 11:09:17,121 INFO L226 Difference]: Without dead ends: 62194 [2022-01-18 11:09:17,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1078, Invalid=3892, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:09:17,122 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 2382 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 7277 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:17,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2382 Valid, 7277 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:17,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62194 states. [2022-01-18 11:09:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62194 to 43448. [2022-01-18 11:09:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43448 states, 43447 states have (on average 2.7948304831173614) internal successors, (121427), 43447 states have internal predecessors, (121427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43448 states to 43448 states and 121427 transitions. [2022-01-18 11:09:18,007 INFO L78 Accepts]: Start accepts. Automaton has 43448 states and 121427 transitions. Word has length 243 [2022-01-18 11:09:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:18,008 INFO L470 AbstractCegarLoop]: Abstraction has 43448 states and 121427 transitions. [2022-01-18 11:09:18,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 43448 states and 121427 transitions. [2022-01-18 11:09:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:18,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:18,053 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:18,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 11:09:18,053 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1475734629, now seen corresponding path program 5 times [2022-01-18 11:09:18,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173572749] [2022-01-18 11:09:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:18,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:18,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173572749] [2022-01-18 11:09:18,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173572749] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:09:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73196475] [2022-01-18 11:09:18,535 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:09:18,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:09:18,536 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:09:18,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 11:09:18,911 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-18 11:09:18,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:09:18,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 50 conjunts are in the unsatisfiable core [2022-01-18 11:09:18,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:09:18,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:09:19,029 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:09:19,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:09:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:09:20,051 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-18 11:09:20,051 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2022-01-18 11:09:20,329 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:09:20,329 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2022-01-18 11:09:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:20,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:09:20,953 INFO L353 Elim1Store]: treesize reduction 27, result has 68.2 percent of original size [2022-01-18 11:09:20,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 110 [2022-01-18 11:09:20,971 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:09:20,971 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2022-01-18 11:09:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:22,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73196475] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:09:22,396 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:09:22,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 21] total 54 [2022-01-18 11:09:22,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267984587] [2022-01-18 11:09:22,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:09:22,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 11:09:22,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:22,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 11:09:22,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=2640, Unknown=21, NotChecked=0, Total=2862 [2022-01-18 11:09:22,397 INFO L87 Difference]: Start difference. First operand 43448 states and 121427 transitions. Second operand has 54 states, 54 states have (on average 7.5) internal successors, (405), 54 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:27,077 INFO L93 Difference]: Finished difference Result 102234 states and 284560 transitions. [2022-01-18 11:09:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 11:09:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.5) internal successors, (405), 54 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:27,293 INFO L225 Difference]: With dead ends: 102234 [2022-01-18 11:09:27,293 INFO L226 Difference]: Without dead ends: 102234 [2022-01-18 11:09:27,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 455 SyntacticMatches, 8 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2492 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2295, Invalid=9674, Unknown=21, NotChecked=0, Total=11990 [2022-01-18 11:09:27,295 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 4938 mSDsluCounter, 12180 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4938 SdHoareTripleChecker+Valid, 12555 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:27,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4938 Valid, 12555 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2857 Invalid, 0 Unknown, 284 Unchecked, 1.1s Time] [2022-01-18 11:09:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102234 states. [2022-01-18 11:09:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102234 to 43809. [2022-01-18 11:09:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43809 states, 43808 states have (on average 2.793485208181154) internal successors, (122377), 43808 states have internal predecessors, (122377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43809 states to 43809 states and 122377 transitions. [2022-01-18 11:09:28,434 INFO L78 Accepts]: Start accepts. Automaton has 43809 states and 122377 transitions. Word has length 243 [2022-01-18 11:09:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:28,434 INFO L470 AbstractCegarLoop]: Abstraction has 43809 states and 122377 transitions. [2022-01-18 11:09:28,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.5) internal successors, (405), 54 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43809 states and 122377 transitions. [2022-01-18 11:09:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:28,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:28,480 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:28,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 11:09:28,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:28,681 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 444319209, now seen corresponding path program 6 times [2022-01-18 11:09:28,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:28,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909588361] [2022-01-18 11:09:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:28,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-01-18 11:09:29,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:29,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909588361] [2022-01-18 11:09:29,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909588361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:29,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:29,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:29,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512563472] [2022-01-18 11:09:29,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:29,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:29,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:29,364 INFO L87 Difference]: Start difference. First operand 43809 states and 122377 transitions. Second operand has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:31,373 INFO L93 Difference]: Finished difference Result 61907 states and 171948 transitions. [2022-01-18 11:09:31,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:09:31,373 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:31,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:31,492 INFO L225 Difference]: With dead ends: 61907 [2022-01-18 11:09:31,492 INFO L226 Difference]: Without dead ends: 61907 [2022-01-18 11:09:31,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=859, Invalid=2923, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:09:31,493 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 1973 mSDsluCounter, 5343 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:31,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 5722 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61907 states. [2022-01-18 11:09:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61907 to 44373. [2022-01-18 11:09:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44373 states, 44372 states have (on average 2.792932479942306) internal successors, (123928), 44372 states have internal predecessors, (123928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44373 states to 44373 states and 123928 transitions. [2022-01-18 11:09:32,395 INFO L78 Accepts]: Start accepts. Automaton has 44373 states and 123928 transitions. Word has length 243 [2022-01-18 11:09:32,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:32,395 INFO L470 AbstractCegarLoop]: Abstraction has 44373 states and 123928 transitions. [2022-01-18 11:09:32,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 44373 states and 123928 transitions. [2022-01-18 11:09:32,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:32,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:32,445 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:32,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 11:09:32,445 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:32,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:32,445 INFO L85 PathProgramCache]: Analyzing trace with hash -51155059, now seen corresponding path program 7 times [2022-01-18 11:09:32,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:32,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119475802] [2022-01-18 11:09:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:32,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:33,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:33,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119475802] [2022-01-18 11:09:33,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119475802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:33,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:33,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:33,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402438395] [2022-01-18 11:09:33,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:33,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:33,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:33,060 INFO L87 Difference]: Start difference. First operand 44373 states and 123928 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:35,213 INFO L93 Difference]: Finished difference Result 57042 states and 158247 transitions. [2022-01-18 11:09:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:35,214 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:35,325 INFO L225 Difference]: With dead ends: 57042 [2022-01-18 11:09:35,326 INFO L226 Difference]: Without dead ends: 57042 [2022-01-18 11:09:35,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=990, Invalid=3432, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:09:35,327 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 1961 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:35,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 5536 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:35,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57042 states. [2022-01-18 11:09:36,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57042 to 44325. [2022-01-18 11:09:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44325 states, 44324 states have (on average 2.7929789730168757) internal successors, (123796), 44324 states have internal predecessors, (123796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44325 states to 44325 states and 123796 transitions. [2022-01-18 11:09:36,156 INFO L78 Accepts]: Start accepts. Automaton has 44325 states and 123796 transitions. Word has length 243 [2022-01-18 11:09:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:36,156 INFO L470 AbstractCegarLoop]: Abstraction has 44325 states and 123796 transitions. [2022-01-18 11:09:36,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 44325 states and 123796 transitions. [2022-01-18 11:09:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:36,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:36,203 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:36,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 11:09:36,203 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:36,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -58858023, now seen corresponding path program 8 times [2022-01-18 11:09:36,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:36,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581639703] [2022-01-18 11:09:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:36,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:36,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:36,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581639703] [2022-01-18 11:09:36,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581639703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:36,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:36,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:36,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306284586] [2022-01-18 11:09:36,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:36,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:36,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:36,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:36,660 INFO L87 Difference]: Start difference. First operand 44325 states and 123796 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:38,943 INFO L93 Difference]: Finished difference Result 60564 states and 168215 transitions. [2022-01-18 11:09:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:09:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:38,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:39,063 INFO L225 Difference]: With dead ends: 60564 [2022-01-18 11:09:39,063 INFO L226 Difference]: Without dead ends: 60564 [2022-01-18 11:09:39,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=936, Invalid=3354, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:09:39,064 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 2012 mSDsluCounter, 5871 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:39,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2012 Valid, 6268 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60564 states. [2022-01-18 11:09:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60564 to 44277. [2022-01-18 11:09:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44277 states, 44276 states have (on average 2.7930255668985455) internal successors, (123664), 44276 states have internal predecessors, (123664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44277 states to 44277 states and 123664 transitions. [2022-01-18 11:09:39,928 INFO L78 Accepts]: Start accepts. Automaton has 44277 states and 123664 transitions. Word has length 243 [2022-01-18 11:09:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:39,928 INFO L470 AbstractCegarLoop]: Abstraction has 44277 states and 123664 transitions. [2022-01-18 11:09:39,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 44277 states and 123664 transitions. [2022-01-18 11:09:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:39,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:39,975 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:39,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 11:09:39,975 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1478867377, now seen corresponding path program 9 times [2022-01-18 11:09:39,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:39,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558655666] [2022-01-18 11:09:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:39,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:40,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558655666] [2022-01-18 11:09:40,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558655666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:40,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:40,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:40,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461286825] [2022-01-18 11:09:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:40,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:40,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:40,473 INFO L87 Difference]: Start difference. First operand 44277 states and 123664 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:43,042 INFO L93 Difference]: Finished difference Result 74100 states and 205762 transitions. [2022-01-18 11:09:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:09:43,042 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:43,180 INFO L225 Difference]: With dead ends: 74100 [2022-01-18 11:09:43,180 INFO L226 Difference]: Without dead ends: 74100 [2022-01-18 11:09:43,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1090, Invalid=3880, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 11:09:43,181 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 2187 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 6282 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:43,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2187 Valid, 6282 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:09:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74100 states. [2022-01-18 11:09:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74100 to 43845. [2022-01-18 11:09:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43845 states, 43844 states have (on average 2.7934495027825927) internal successors, (122476), 43844 states have internal predecessors, (122476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43845 states to 43845 states and 122476 transitions. [2022-01-18 11:09:44,141 INFO L78 Accepts]: Start accepts. Automaton has 43845 states and 122476 transitions. Word has length 243 [2022-01-18 11:09:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:44,142 INFO L470 AbstractCegarLoop]: Abstraction has 43845 states and 122476 transitions. [2022-01-18 11:09:44,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 43845 states and 122476 transitions. [2022-01-18 11:09:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:44,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:44,187 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:44,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 11:09:44,187 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:44,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1856192171, now seen corresponding path program 10 times [2022-01-18 11:09:44,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:44,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710758580] [2022-01-18 11:09:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:44,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:09:44,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:44,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710758580] [2022-01-18 11:09:44,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710758580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:44,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:44,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350959936] [2022-01-18 11:09:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:44,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:44,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:44,658 INFO L87 Difference]: Start difference. First operand 43845 states and 122476 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:46,573 INFO L93 Difference]: Finished difference Result 60051 states and 166852 transitions. [2022-01-18 11:09:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:09:46,574 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:46,686 INFO L225 Difference]: With dead ends: 60051 [2022-01-18 11:09:46,687 INFO L226 Difference]: Without dead ends: 60051 [2022-01-18 11:09:46,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:09:46,687 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 2025 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:46,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2025 Valid, 4856 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:09:46,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60051 states. [2022-01-18 11:09:47,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60051 to 43901. [2022-01-18 11:09:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43901 states, 43900 states have (on average 2.7936674259681094) internal successors, (122642), 43900 states have internal predecessors, (122642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43901 states to 43901 states and 122642 transitions. [2022-01-18 11:09:47,557 INFO L78 Accepts]: Start accepts. Automaton has 43901 states and 122642 transitions. Word has length 243 [2022-01-18 11:09:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:47,557 INFO L470 AbstractCegarLoop]: Abstraction has 43901 states and 122642 transitions. [2022-01-18 11:09:47,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 43901 states and 122642 transitions. [2022-01-18 11:09:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:47,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:47,603 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:47,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 11:09:47,604 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:47,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:47,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1582496843, now seen corresponding path program 11 times [2022-01-18 11:09:47,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:47,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591857169] [2022-01-18 11:09:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:47,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:48,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:48,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591857169] [2022-01-18 11:09:48,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591857169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:48,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:48,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:48,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456768638] [2022-01-18 11:09:48,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:48,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:48,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:48,087 INFO L87 Difference]: Start difference. First operand 43901 states and 122642 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:50,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:50,019 INFO L93 Difference]: Finished difference Result 55753 states and 154740 transitions. [2022-01-18 11:09:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:09:50,019 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:50,123 INFO L225 Difference]: With dead ends: 55753 [2022-01-18 11:09:50,123 INFO L226 Difference]: Without dead ends: 55753 [2022-01-18 11:09:50,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=803, Invalid=2857, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:09:50,124 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 2047 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:50,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2047 Valid, 4914 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:09:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55753 states. [2022-01-18 11:09:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55753 to 43853. [2022-01-18 11:09:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 2.7937152239350542) internal successors, (122510), 43852 states have internal predecessors, (122510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 122510 transitions. [2022-01-18 11:09:51,050 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 122510 transitions. Word has length 243 [2022-01-18 11:09:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:51,050 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 122510 transitions. [2022-01-18 11:09:51,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 122510 transitions. [2022-01-18 11:09:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:51,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:51,098 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:51,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 11:09:51,098 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1438520043, now seen corresponding path program 12 times [2022-01-18 11:09:51,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:51,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277637680] [2022-01-18 11:09:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:51,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:09:51,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:51,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277637680] [2022-01-18 11:09:51,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277637680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:51,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:51,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:51,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203224409] [2022-01-18 11:09:51,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:51,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:51,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:51,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:51,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:51,569 INFO L87 Difference]: Start difference. First operand 43853 states and 122510 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:53,619 INFO L93 Difference]: Finished difference Result 54533 states and 151327 transitions. [2022-01-18 11:09:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:09:53,620 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:53,717 INFO L225 Difference]: With dead ends: 54533 [2022-01-18 11:09:53,717 INFO L226 Difference]: Without dead ends: 54481 [2022-01-18 11:09:53,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=791, Invalid=2631, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:09:53,718 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1947 mSDsluCounter, 4550 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:53,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1947 Valid, 4875 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:09:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54481 states. [2022-01-18 11:09:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54481 to 43853. [2022-01-18 11:09:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 2.793624008027) internal successors, (122506), 43852 states have internal predecessors, (122506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:54,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 122506 transitions. [2022-01-18 11:09:54,414 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 122506 transitions. Word has length 243 [2022-01-18 11:09:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:54,414 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 122506 transitions. [2022-01-18 11:09:54,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 122506 transitions. [2022-01-18 11:09:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:54,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:54,604 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:54,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 11:09:54,604 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:54,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:54,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1246070921, now seen corresponding path program 13 times [2022-01-18 11:09:54,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:54,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345743429] [2022-01-18 11:09:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:54,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:09:55,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:55,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345743429] [2022-01-18 11:09:55,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345743429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:55,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:55,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:09:55,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915245995] [2022-01-18 11:09:55,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:55,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:09:55,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:55,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:09:55,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:09:55,075 INFO L87 Difference]: Start difference. First operand 43853 states and 122506 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:56,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:56,985 INFO L93 Difference]: Finished difference Result 59359 states and 164941 transitions. [2022-01-18 11:09:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:09:56,986 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:09:56,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:57,100 INFO L225 Difference]: With dead ends: 59359 [2022-01-18 11:09:57,100 INFO L226 Difference]: Without dead ends: 59359 [2022-01-18 11:09:57,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=817, Invalid=2843, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:09:57,101 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1938 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 5215 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:57,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1938 Valid, 5215 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:09:57,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59359 states. [2022-01-18 11:09:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59359 to 43949. [2022-01-18 11:09:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43949 states, 43948 states have (on average 2.793528715754983) internal successors, (122770), 43948 states have internal predecessors, (122770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43949 states to 43949 states and 122770 transitions. [2022-01-18 11:09:57,975 INFO L78 Accepts]: Start accepts. Automaton has 43949 states and 122770 transitions. Word has length 243 [2022-01-18 11:09:57,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:57,976 INFO L470 AbstractCegarLoop]: Abstraction has 43949 states and 122770 transitions. [2022-01-18 11:09:57,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,976 INFO L276 IsEmpty]: Start isEmpty. Operand 43949 states and 122770 transitions. [2022-01-18 11:09:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:09:58,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:58,022 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:58,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 11:09:58,022 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:58,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash 972375593, now seen corresponding path program 14 times [2022-01-18 11:09:58,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:58,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299853651] [2022-01-18 11:09:58,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:58,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:58,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:58,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299853651] [2022-01-18 11:09:58,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299853651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:58,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:58,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:09:58,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200480193] [2022-01-18 11:09:58,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:58,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:09:58,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:58,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:09:58,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:09:58,605 INFO L87 Difference]: Start difference. First operand 43949 states and 122770 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:00,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:00,526 INFO L93 Difference]: Finished difference Result 54494 states and 151240 transitions. [2022-01-18 11:10:00,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:10:00,527 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:00,631 INFO L225 Difference]: With dead ends: 54494 [2022-01-18 11:10:00,632 INFO L226 Difference]: Without dead ends: 54494 [2022-01-18 11:10:00,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=858, Invalid=3048, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:10:00,632 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 1805 mSDsluCounter, 4951 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:00,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 5328 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:10:00,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54494 states. [2022-01-18 11:10:01,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54494 to 43901. [2022-01-18 11:10:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43901 states, 43900 states have (on average 2.7935763097949886) internal successors, (122638), 43900 states have internal predecessors, (122638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43901 states to 43901 states and 122638 transitions. [2022-01-18 11:10:01,436 INFO L78 Accepts]: Start accepts. Automaton has 43901 states and 122638 transitions. Word has length 243 [2022-01-18 11:10:01,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:01,436 INFO L470 AbstractCegarLoop]: Abstraction has 43901 states and 122638 transitions. [2022-01-18 11:10:01,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43901 states and 122638 transitions. [2022-01-18 11:10:01,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:01,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:01,481 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:01,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 11:10:01,481 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1772170929, now seen corresponding path program 15 times [2022-01-18 11:10:01,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:01,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407626364] [2022-01-18 11:10:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:01,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:01,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:01,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407626364] [2022-01-18 11:10:01,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407626364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:01,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:01,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:10:01,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354486782] [2022-01-18 11:10:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:01,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:10:01,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:01,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:10:01,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:10:01,962 INFO L87 Difference]: Start difference. First operand 43901 states and 122638 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:04,149 INFO L93 Difference]: Finished difference Result 58313 states and 162026 transitions. [2022-01-18 11:10:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:04,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:04,256 INFO L225 Difference]: With dead ends: 58313 [2022-01-18 11:10:04,257 INFO L226 Difference]: Without dead ends: 58313 [2022-01-18 11:10:04,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=815, Invalid=2967, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:10:04,257 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 1851 mSDsluCounter, 5755 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 6131 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:04,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1851 Valid, 6131 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:10:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58313 states. [2022-01-18 11:10:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58313 to 43853. [2022-01-18 11:10:05,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 2.793624008027) internal successors, (122506), 43852 states have internal predecessors, (122506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:05,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 122506 transitions. [2022-01-18 11:10:05,105 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 122506 transitions. Word has length 243 [2022-01-18 11:10:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:05,105 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 122506 transitions. [2022-01-18 11:10:05,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 122506 transitions. [2022-01-18 11:10:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:05,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:05,152 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:05,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 11:10:05,153 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1736526117, now seen corresponding path program 16 times [2022-01-18 11:10:05,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:05,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702273840] [2022-01-18 11:10:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:05,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:05,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:05,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702273840] [2022-01-18 11:10:05,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702273840] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:10:05,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456467941] [2022-01-18 11:10:05,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:10:05,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:05,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:10:05,602 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:10:05,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 11:10:05,955 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:10:05,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:10:05,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-18 11:10:05,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:10:07,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:10:07,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:10:07,114 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-18 11:10:07,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-01-18 11:10:07,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-18 11:10:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:07,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:10:07,933 INFO L353 Elim1Store]: treesize reduction 27, result has 68.2 percent of original size [2022-01-18 11:10:07,933 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 110 [2022-01-18 11:10:07,940 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:10:07,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2022-01-18 11:10:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:09,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456467941] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:10:09,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:10:09,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 21] total 57 [2022-01-18 11:10:09,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618444613] [2022-01-18 11:10:09,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:10:09,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-01-18 11:10:09,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:09,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-01-18 11:10:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2969, Unknown=1, NotChecked=0, Total=3192 [2022-01-18 11:10:09,285 INFO L87 Difference]: Start difference. First operand 43853 states and 122506 transitions. Second operand has 57 states, 57 states have (on average 7.649122807017544) internal successors, (436), 57 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:13,854 INFO L93 Difference]: Finished difference Result 67887 states and 188047 transitions. [2022-01-18 11:10:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:10:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 7.649122807017544) internal successors, (436), 57 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:13,981 INFO L225 Difference]: With dead ends: 67887 [2022-01-18 11:10:13,981 INFO L226 Difference]: Without dead ends: 67887 [2022-01-18 11:10:13,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 452 SyntacticMatches, 15 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2666 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2155, Invalid=8974, Unknown=1, NotChecked=0, Total=11130 [2022-01-18 11:10:13,982 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 5067 mSDsluCounter, 11292 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 165 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:13,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5067 Valid, 11588 Invalid, 3150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2948 Invalid, 0 Unknown, 165 Unchecked, 1.1s Time] [2022-01-18 11:10:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67887 states. [2022-01-18 11:10:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67887 to 43492. [2022-01-18 11:10:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43492 states, 43491 states have (on average 2.7949690740613002) internal successors, (121556), 43491 states have internal predecessors, (121556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43492 states to 43492 states and 121556 transitions. [2022-01-18 11:10:14,829 INFO L78 Accepts]: Start accepts. Automaton has 43492 states and 121556 transitions. Word has length 243 [2022-01-18 11:10:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:14,829 INFO L470 AbstractCegarLoop]: Abstraction has 43492 states and 121556 transitions. [2022-01-18 11:10:14,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 7.649122807017544) internal successors, (436), 57 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 43492 states and 121556 transitions. [2022-01-18 11:10:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:14,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:14,874 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:14,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 11:10:15,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable264 [2022-01-18 11:10:15,075 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1621547873, now seen corresponding path program 17 times [2022-01-18 11:10:15,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:15,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241602844] [2022-01-18 11:10:15,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:15,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-01-18 11:10:15,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:15,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241602844] [2022-01-18 11:10:15,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241602844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:15,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:15,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:15,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284541517] [2022-01-18 11:10:15,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:15,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:15,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:15,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:15,460 INFO L87 Difference]: Start difference. First operand 43492 states and 121556 transitions. Second operand has 22 states, 22 states have (on average 8.318181818181818) internal successors, (183), 22 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:17,306 INFO L93 Difference]: Finished difference Result 62394 states and 173398 transitions. [2022-01-18 11:10:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:10:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.318181818181818) internal successors, (183), 22 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:17,419 INFO L225 Difference]: With dead ends: 62394 [2022-01-18 11:10:17,420 INFO L226 Difference]: Without dead ends: 62394 [2022-01-18 11:10:17,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=947, Invalid=3085, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:10:17,420 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1828 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:17,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1828 Valid, 4569 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62394 states. [2022-01-18 11:10:18,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62394 to 44092. [2022-01-18 11:10:18,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44092 states, 44091 states have (on average 2.7943571250368557) internal successors, (123206), 44091 states have internal predecessors, (123206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44092 states to 44092 states and 123206 transitions. [2022-01-18 11:10:18,376 INFO L78 Accepts]: Start accepts. Automaton has 44092 states and 123206 transitions. Word has length 243 [2022-01-18 11:10:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:18,376 INFO L470 AbstractCegarLoop]: Abstraction has 44092 states and 123206 transitions. [2022-01-18 11:10:18,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.318181818181818) internal successors, (183), 22 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 44092 states and 123206 transitions. [2022-01-18 11:10:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:18,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:18,423 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:18,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 11:10:18,423 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2117022141, now seen corresponding path program 18 times [2022-01-18 11:10:18,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:18,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620452199] [2022-01-18 11:10:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:18,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:18,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:18,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620452199] [2022-01-18 11:10:18,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620452199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:18,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:18,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:18,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503844543] [2022-01-18 11:10:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:18,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:18,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:18,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:18,810 INFO L87 Difference]: Start difference. First operand 44092 states and 123206 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:20,829 INFO L93 Difference]: Finished difference Result 57529 states and 159697 transitions. [2022-01-18 11:10:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:10:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:20,935 INFO L225 Difference]: With dead ends: 57529 [2022-01-18 11:10:20,935 INFO L226 Difference]: Without dead ends: 57529 [2022-01-18 11:10:20,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=994, Invalid=3296, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:10:20,935 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1739 mSDsluCounter, 4727 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:20,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1739 Valid, 5086 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:20,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57529 states. [2022-01-18 11:10:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57529 to 44044. [2022-01-18 11:10:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44044 states, 44043 states have (on average 2.794405467384147) internal successors, (123074), 44043 states have internal predecessors, (123074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44044 states to 44044 states and 123074 transitions. [2022-01-18 11:10:21,884 INFO L78 Accepts]: Start accepts. Automaton has 44044 states and 123074 transitions. Word has length 243 [2022-01-18 11:10:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:21,885 INFO L470 AbstractCegarLoop]: Abstraction has 44044 states and 123074 transitions. [2022-01-18 11:10:21,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 44044 states and 123074 transitions. [2022-01-18 11:10:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:21,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:21,930 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:21,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 11:10:21,931 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:21,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2124725105, now seen corresponding path program 19 times [2022-01-18 11:10:21,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:21,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272676262] [2022-01-18 11:10:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:21,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:22,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:22,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272676262] [2022-01-18 11:10:22,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272676262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:22,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:22,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:22,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243869678] [2022-01-18 11:10:22,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:22,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:22,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:22,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:22,359 INFO L87 Difference]: Start difference. First operand 44044 states and 123074 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:24,270 INFO L93 Difference]: Finished difference Result 61051 states and 169665 transitions. [2022-01-18 11:10:24,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:10:24,271 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:24,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:24,392 INFO L225 Difference]: With dead ends: 61051 [2022-01-18 11:10:24,392 INFO L226 Difference]: Without dead ends: 61051 [2022-01-18 11:10:24,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1030, Invalid=3526, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 11:10:24,397 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1977 mSDsluCounter, 4597 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:24,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1977 Valid, 4974 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61051 states. [2022-01-18 11:10:25,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61051 to 43996. [2022-01-18 11:10:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43996 states, 43995 states have (on average 2.7944539152176384) internal successors, (122942), 43995 states have internal predecessors, (122942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43996 states to 43996 states and 122942 transitions. [2022-01-18 11:10:25,276 INFO L78 Accepts]: Start accepts. Automaton has 43996 states and 122942 transitions. Word has length 243 [2022-01-18 11:10:25,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:25,276 INFO L470 AbstractCegarLoop]: Abstraction has 43996 states and 122942 transitions. [2022-01-18 11:10:25,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 43996 states and 122942 transitions. [2022-01-18 11:10:25,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:25,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:25,322 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:25,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 11:10:25,322 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:25,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash 750232837, now seen corresponding path program 20 times [2022-01-18 11:10:25,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:25,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986911295] [2022-01-18 11:10:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:25,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:25,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:25,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986911295] [2022-01-18 11:10:25,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986911295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:25,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:25,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013605844] [2022-01-18 11:10:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:25,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:25,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:25,724 INFO L87 Difference]: Start difference. First operand 43996 states and 122942 transitions. Second operand has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:27,539 INFO L93 Difference]: Finished difference Result 74587 states and 207212 transitions. [2022-01-18 11:10:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:10:27,539 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:27,682 INFO L225 Difference]: With dead ends: 74587 [2022-01-18 11:10:27,682 INFO L226 Difference]: Without dead ends: 74587 [2022-01-18 11:10:27,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1086, Invalid=3606, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 11:10:27,683 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 1932 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:27,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1932 Valid, 4748 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74587 states. [2022-01-18 11:10:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74587 to 43564. [2022-01-18 11:10:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43564 states, 43563 states have (on average 2.7948947501319927) internal successors, (121754), 43563 states have internal predecessors, (121754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43564 states to 43564 states and 121754 transitions. [2022-01-18 11:10:28,650 INFO L78 Accepts]: Start accepts. Automaton has 43564 states and 121754 transitions. Word has length 243 [2022-01-18 11:10:28,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:28,650 INFO L470 AbstractCegarLoop]: Abstraction has 43564 states and 121754 transitions. [2022-01-18 11:10:28,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 43564 states and 121754 transitions. [2022-01-18 11:10:28,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:28,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:28,697 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:28,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 11:10:28,697 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:28,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash -209674911, now seen corresponding path program 21 times [2022-01-18 11:10:28,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:28,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077535078] [2022-01-18 11:10:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:28,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:29,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:29,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077535078] [2022-01-18 11:10:29,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077535078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:29,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:29,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:29,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371501223] [2022-01-18 11:10:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:29,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:29,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:29,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:29,196 INFO L87 Difference]: Start difference. First operand 43564 states and 121754 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:31,656 INFO L93 Difference]: Finished difference Result 62814 states and 174661 transitions. [2022-01-18 11:10:31,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:10:31,657 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:31,786 INFO L225 Difference]: With dead ends: 62814 [2022-01-18 11:10:31,787 INFO L226 Difference]: Without dead ends: 62814 [2022-01-18 11:10:31,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1044, Invalid=3378, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:10:31,787 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 2083 mSDsluCounter, 4646 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:31,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2083 Valid, 5001 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:10:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62814 states. [2022-01-18 11:10:32,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62814 to 43620. [2022-01-18 11:10:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43620 states, 43619 states have (on average 2.795112221738233) internal successors, (121920), 43619 states have internal predecessors, (121920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43620 states to 43620 states and 121920 transitions. [2022-01-18 11:10:32,657 INFO L78 Accepts]: Start accepts. Automaton has 43620 states and 121920 transitions. Word has length 243 [2022-01-18 11:10:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:32,657 INFO L470 AbstractCegarLoop]: Abstraction has 43620 states and 121920 transitions. [2022-01-18 11:10:32,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 43620 states and 121920 transitions. [2022-01-18 11:10:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:32,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:32,703 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:32,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 11:10:32,703 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:32,704 INFO L85 PathProgramCache]: Analyzing trace with hash -483370239, now seen corresponding path program 22 times [2022-01-18 11:10:32,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:32,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755702840] [2022-01-18 11:10:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:32,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:33,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:33,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755702840] [2022-01-18 11:10:33,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755702840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:33,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:33,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-18 11:10:33,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209969711] [2022-01-18 11:10:33,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:33,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:10:33,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:10:33,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:10:33,175 INFO L87 Difference]: Start difference. First operand 43620 states and 121920 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:35,723 INFO L93 Difference]: Finished difference Result 58516 states and 162549 transitions. [2022-01-18 11:10:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:10:35,723 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:35,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:35,837 INFO L225 Difference]: With dead ends: 58516 [2022-01-18 11:10:35,837 INFO L226 Difference]: Without dead ends: 58516 [2022-01-18 11:10:35,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1097, Invalid=3595, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 11:10:35,838 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1869 mSDsluCounter, 5434 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 5783 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:35,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 5783 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:10:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58516 states. [2022-01-18 11:10:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58516 to 43572. [2022-01-18 11:10:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43572 states, 43571 states have (on average 2.795161919625439) internal successors, (121788), 43571 states have internal predecessors, (121788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43572 states to 43572 states and 121788 transitions. [2022-01-18 11:10:36,689 INFO L78 Accepts]: Start accepts. Automaton has 43572 states and 121788 transitions. Word has length 243 [2022-01-18 11:10:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:36,689 INFO L470 AbstractCegarLoop]: Abstraction has 43572 states and 121788 transitions. [2022-01-18 11:10:36,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 43572 states and 121788 transitions. [2022-01-18 11:10:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:36,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:36,735 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:36,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 11:10:36,735 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash -627347039, now seen corresponding path program 23 times [2022-01-18 11:10:36,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:36,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025857311] [2022-01-18 11:10:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:36,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:37,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:37,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025857311] [2022-01-18 11:10:37,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025857311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:37,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:37,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:37,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083166594] [2022-01-18 11:10:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:37,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:37,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:37,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:37,195 INFO L87 Difference]: Start difference. First operand 43572 states and 121788 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:39,661 INFO L93 Difference]: Finished difference Result 57616 states and 159984 transitions. [2022-01-18 11:10:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:10:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:39,768 INFO L225 Difference]: With dead ends: 57616 [2022-01-18 11:10:39,768 INFO L226 Difference]: Without dead ends: 57564 [2022-01-18 11:10:39,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 772 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1028, Invalid=3262, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:10:39,769 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1991 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:39,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1991 Valid, 4941 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:10:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57564 states. [2022-01-18 11:10:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57564 to 43568. [2022-01-18 11:10:40,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43568 states, 43567 states have (on average 2.794982440838249) internal successors, (121769), 43567 states have internal predecessors, (121769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43568 states to 43568 states and 121769 transitions. [2022-01-18 11:10:40,655 INFO L78 Accepts]: Start accepts. Automaton has 43568 states and 121769 transitions. Word has length 243 [2022-01-18 11:10:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:40,656 INFO L470 AbstractCegarLoop]: Abstraction has 43568 states and 121769 transitions. [2022-01-18 11:10:40,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 43568 states and 121769 transitions. [2022-01-18 11:10:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:40,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:40,701 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:40,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 11:10:40,701 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:40,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:40,702 INFO L85 PathProgramCache]: Analyzing trace with hash -819796161, now seen corresponding path program 24 times [2022-01-18 11:10:40,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:40,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193981935] [2022-01-18 11:10:40,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:40,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:41,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:41,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193981935] [2022-01-18 11:10:41,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193981935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:41,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:41,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:41,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594497389] [2022-01-18 11:10:41,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:41,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:41,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:41,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:41,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:41,152 INFO L87 Difference]: Start difference. First operand 43568 states and 121769 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:43,425 INFO L93 Difference]: Finished difference Result 62050 states and 172520 transitions. [2022-01-18 11:10:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:10:43,425 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:43,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:43,535 INFO L225 Difference]: With dead ends: 62050 [2022-01-18 11:10:43,535 INFO L226 Difference]: Without dead ends: 62050 [2022-01-18 11:10:43,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:10:43,536 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1659 mSDsluCounter, 5292 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 5652 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:43,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1659 Valid, 5652 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:10:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62050 states. [2022-01-18 11:10:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62050 to 43664. [2022-01-18 11:10:44,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43664 states, 43663 states have (on average 2.794883539839223) internal successors, (122033), 43663 states have internal predecessors, (122033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43664 states to 43664 states and 122033 transitions. [2022-01-18 11:10:44,518 INFO L78 Accepts]: Start accepts. Automaton has 43664 states and 122033 transitions. Word has length 243 [2022-01-18 11:10:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:44,518 INFO L470 AbstractCegarLoop]: Abstraction has 43664 states and 122033 transitions. [2022-01-18 11:10:44,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,519 INFO L276 IsEmpty]: Start isEmpty. Operand 43664 states and 122033 transitions. [2022-01-18 11:10:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:44,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:44,565 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:44,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 11:10:44,565 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:44,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1093491489, now seen corresponding path program 25 times [2022-01-18 11:10:44,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:44,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464984188] [2022-01-18 11:10:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:44,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:44,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:44,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464984188] [2022-01-18 11:10:44,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464984188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:44,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:44,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:44,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53915385] [2022-01-18 11:10:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:44,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:44,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:44,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:44,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:44,971 INFO L87 Difference]: Start difference. First operand 43664 states and 122033 transitions. Second operand has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:46,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:46,401 INFO L93 Difference]: Finished difference Result 57185 states and 158819 transitions. [2022-01-18 11:10:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:46,401 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:46,509 INFO L225 Difference]: With dead ends: 57185 [2022-01-18 11:10:46,509 INFO L226 Difference]: Without dead ends: 57185 [2022-01-18 11:10:46,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=932, Invalid=2974, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:10:46,510 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1543 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 4203 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:46,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 4203 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:46,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57185 states. [2022-01-18 11:10:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57185 to 43616. [2022-01-18 11:10:47,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43616 states, 43615 states have (on average 2.7949329359165427) internal successors, (121901), 43615 states have internal predecessors, (121901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43616 states to 43616 states and 121901 transitions. [2022-01-18 11:10:47,390 INFO L78 Accepts]: Start accepts. Automaton has 43616 states and 121901 transitions. Word has length 243 [2022-01-18 11:10:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:47,390 INFO L470 AbstractCegarLoop]: Abstraction has 43616 states and 121901 transitions. [2022-01-18 11:10:47,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 43616 states and 121901 transitions. [2022-01-18 11:10:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:47,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:47,435 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:47,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 11:10:47,436 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:47,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:47,436 INFO L85 PathProgramCache]: Analyzing trace with hash -293696153, now seen corresponding path program 26 times [2022-01-18 11:10:47,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:47,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587587764] [2022-01-18 11:10:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:47,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:47,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:47,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587587764] [2022-01-18 11:10:47,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587587764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:47,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:47,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:10:47,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656909763] [2022-01-18 11:10:47,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:47,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:10:47,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:10:47,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:10:47,976 INFO L87 Difference]: Start difference. First operand 43616 states and 121901 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:49,737 INFO L93 Difference]: Finished difference Result 61004 states and 169605 transitions. [2022-01-18 11:10:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:10:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:49,848 INFO L225 Difference]: With dead ends: 61004 [2022-01-18 11:10:49,848 INFO L226 Difference]: Without dead ends: 61004 [2022-01-18 11:10:49,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=975, Invalid=3315, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:10:49,849 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1830 mSDsluCounter, 4283 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:49,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1830 Valid, 4644 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:49,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61004 states. [2022-01-18 11:10:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61004 to 43528. [2022-01-18 11:10:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43528 states, 43527 states have (on average 2.7949318813609945) internal successors, (121655), 43527 states have internal predecessors, (121655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43528 states to 43528 states and 121655 transitions. [2022-01-18 11:10:50,681 INFO L78 Accepts]: Start accepts. Automaton has 43528 states and 121655 transitions. Word has length 243 [2022-01-18 11:10:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:50,681 INFO L470 AbstractCegarLoop]: Abstraction has 43528 states and 121655 transitions. [2022-01-18 11:10:50,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 43528 states and 121655 transitions. [2022-01-18 11:10:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:50,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:50,726 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:50,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 11:10:50,727 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1764441885, now seen corresponding path program 27 times [2022-01-18 11:10:50,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:50,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051362693] [2022-01-18 11:10:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:50,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:51,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:51,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051362693] [2022-01-18 11:10:51,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051362693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:51,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:51,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:51,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853625098] [2022-01-18 11:10:51,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:51,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:51,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:51,093 INFO L87 Difference]: Start difference. First operand 43528 states and 121655 transitions. Second operand has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:52,688 INFO L93 Difference]: Finished difference Result 60518 states and 168287 transitions. [2022-01-18 11:10:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:10:52,689 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:52,797 INFO L225 Difference]: With dead ends: 60518 [2022-01-18 11:10:52,797 INFO L226 Difference]: Without dead ends: 60518 [2022-01-18 11:10:52,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=782, Invalid=2524, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:10:52,798 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1603 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:52,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1603 Valid, 4062 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:10:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60518 states. [2022-01-18 11:10:53,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60518 to 43588. [2022-01-18 11:10:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43588 states, 43587 states have (on average 2.7951453415009064) internal successors, (121832), 43587 states have internal predecessors, (121832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43588 states to 43588 states and 121832 transitions. [2022-01-18 11:10:53,740 INFO L78 Accepts]: Start accepts. Automaton has 43588 states and 121832 transitions. Word has length 243 [2022-01-18 11:10:53,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:53,740 INFO L470 AbstractCegarLoop]: Abstraction has 43588 states and 121832 transitions. [2022-01-18 11:10:53,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 43588 states and 121832 transitions. [2022-01-18 11:10:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:53,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:53,787 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:53,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 11:10:53,787 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2038137213, now seen corresponding path program 28 times [2022-01-18 11:10:53,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:53,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981024920] [2022-01-18 11:10:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:53,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:54,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:54,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981024920] [2022-01-18 11:10:54,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981024920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:54,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:54,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:54,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532155694] [2022-01-18 11:10:54,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:54,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:54,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:54,189 INFO L87 Difference]: Start difference. First operand 43588 states and 121832 transitions. Second operand has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:55,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:55,437 INFO L93 Difference]: Finished difference Result 56220 states and 156175 transitions. [2022-01-18 11:10:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:10:55,437 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:55,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:55,540 INFO L225 Difference]: With dead ends: 56220 [2022-01-18 11:10:55,540 INFO L226 Difference]: Without dead ends: 56220 [2022-01-18 11:10:55,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=817, Invalid=2605, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:10:55,541 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1471 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:55,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 3725 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:10:55,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56220 states. [2022-01-18 11:10:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56220 to 43540. [2022-01-18 11:10:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43540 states, 43539 states have (on average 2.795195112427938) internal successors, (121700), 43539 states have internal predecessors, (121700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43540 states to 43540 states and 121700 transitions. [2022-01-18 11:10:56,435 INFO L78 Accepts]: Start accepts. Automaton has 43540 states and 121700 transitions. Word has length 243 [2022-01-18 11:10:56,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:56,435 INFO L470 AbstractCegarLoop]: Abstraction has 43540 states and 121700 transitions. [2022-01-18 11:10:56,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43540 states and 121700 transitions. [2022-01-18 11:10:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:56,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:56,480 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:56,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 11:10:56,481 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:56,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2112853283, now seen corresponding path program 29 times [2022-01-18 11:10:56,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:56,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836869529] [2022-01-18 11:10:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:56,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:56,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:56,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836869529] [2022-01-18 11:10:56,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836869529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:56,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:56,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:56,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774832911] [2022-01-18 11:10:56,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:56,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:56,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:56,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:56,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:56,847 INFO L87 Difference]: Start difference. First operand 43540 states and 121700 transitions. Second operand has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:58,406 INFO L93 Difference]: Finished difference Result 55348 states and 153687 transitions. [2022-01-18 11:10:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 11:10:58,407 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:10:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:58,511 INFO L225 Difference]: With dead ends: 55348 [2022-01-18 11:10:58,511 INFO L226 Difference]: Without dead ends: 55296 [2022-01-18 11:10:58,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=794, Invalid=2512, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:10:58,512 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1803 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:58,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1803 Valid, 3496 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:10:58,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55296 states. [2022-01-18 11:10:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55296 to 43536. [2022-01-18 11:10:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43536 states, 43535 states have (on average 2.79501550476628) internal successors, (121681), 43535 states have internal predecessors, (121681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43536 states to 43536 states and 121681 transitions. [2022-01-18 11:10:59,315 INFO L78 Accepts]: Start accepts. Automaton has 43536 states and 121681 transitions. Word has length 243 [2022-01-18 11:10:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:59,315 INFO L470 AbstractCegarLoop]: Abstraction has 43536 states and 121681 transitions. [2022-01-18 11:10:59,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 43536 states and 121681 transitions. [2022-01-18 11:10:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:10:59,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:59,361 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:59,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 11:10:59,362 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1920404161, now seen corresponding path program 30 times [2022-01-18 11:10:59,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:59,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180506183] [2022-01-18 11:10:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:59,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-01-18 11:10:59,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:59,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180506183] [2022-01-18 11:10:59,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180506183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:59,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:59,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 11:10:59,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141768017] [2022-01-18 11:10:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:59,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:10:59,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:10:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:10:59,770 INFO L87 Difference]: Start difference. First operand 43536 states and 121681 transitions. Second operand has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:01,514 INFO L93 Difference]: Finished difference Result 60042 states and 166926 transitions. [2022-01-18 11:11:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:11:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-01-18 11:11:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:01,628 INFO L225 Difference]: With dead ends: 60042 [2022-01-18 11:11:01,628 INFO L226 Difference]: Without dead ends: 60042 [2022-01-18 11:11:01,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=827, Invalid=2713, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:11:01,629 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1715 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:01,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 3870 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:11:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60042 states. [2022-01-18 11:11:02,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60042 to 43632. [2022-01-18 11:11:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43632 states, 43631 states have (on average 2.794916458481355) internal successors, (121945), 43631 states have internal predecessors, (121945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43632 states to 43632 states and 121945 transitions. [2022-01-18 11:11:02,636 INFO L78 Accepts]: Start accepts. Automaton has 43632 states and 121945 transitions. Word has length 243 [2022-01-18 11:11:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:02,636 INFO L470 AbstractCegarLoop]: Abstraction has 43632 states and 121945 transitions. [2022-01-18 11:11:02,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 43632 states and 121945 transitions. [2022-01-18 11:11:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-18 11:11:02,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:02,677 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:02,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 11:11:02,678 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:02,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1646708833, now seen corresponding path program 31 times [2022-01-18 11:11:02,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:02,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155804099] [2022-01-18 11:11:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:02,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:03,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:03,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155804099] [2022-01-18 11:11:03,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155804099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:03,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:03,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-18 11:11:03,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898566693] [2022-01-18 11:11:03,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:03,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:11:03,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:11:03,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:11:03,080 INFO L87 Difference]: Start difference. First operand 43632 states and 121945 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 11:11:03,968 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 11:11:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:11:03,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=564, Invalid=2088, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:11:03,969 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 977 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:03,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 2766 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:11:03,970 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:11:03,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 11:11:03,970 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (43632states) and FLOYD_HOARE automaton (currently 32 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 1ms.. [2022-01-18 11:11:03,971 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:11:03,971 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:11:03,973 INFO L732 BasicCegarLoop]: Path program histogram: [80, 70, 35, 35, 31, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:03,974 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:11:03,974 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:11:03,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:11:03 BasicIcfg [2022-01-18 11:11:03,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:11:03,976 INFO L158 Benchmark]: Toolchain (without parser) took 720541.27ms. Allocated memory was 364.9MB in the beginning and 13.8GB in the end (delta: 13.4GB). Free memory was 310.4MB in the beginning and 7.7GB in the end (delta: -7.4GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 364.9MB. Free memory is still 327.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.34ms. Allocated memory is still 364.9MB. Free memory was 310.2MB in the beginning and 336.8MB in the end (delta: -26.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.92ms. Allocated memory is still 364.9MB. Free memory was 336.8MB in the beginning and 334.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: Boogie Preprocessor took 33.99ms. Allocated memory is still 364.9MB. Free memory was 334.7MB in the beginning and 333.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: RCFGBuilder took 423.65ms. Allocated memory is still 364.9MB. Free memory was 333.1MB in the beginning and 315.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L158 Benchmark]: TraceAbstraction took 719816.30ms. Allocated memory was 364.9MB in the beginning and 13.8GB in the end (delta: 13.4GB). Free memory was 315.4MB in the beginning and 7.7GB in the end (delta: -7.4GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2022-01-18 11:11:03,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-01-18 11:11:03,980 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 364.9MB. Free memory is still 327.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 224.34ms. Allocated memory is still 364.9MB. Free memory was 310.2MB in the beginning and 336.8MB in the end (delta: -26.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.92ms. Allocated memory is still 364.9MB. Free memory was 336.8MB in the beginning and 334.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.99ms. Allocated memory is still 364.9MB. Free memory was 334.7MB in the beginning and 333.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 423.65ms. Allocated memory is still 364.9MB. Free memory was 333.1MB in the beginning and 315.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 719816.30ms. Allocated memory was 364.9MB in the beginning and 13.8GB in the end (delta: 13.4GB). Free memory was 315.4MB in the beginning and 7.7GB in the end (delta: -7.4GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (43632states) and FLOYD_HOARE automaton (currently 32 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 1ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (43632states) and FLOYD_HOARE automaton (currently 32 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 1ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (43632states) and FLOYD_HOARE automaton (currently 32 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 274 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 719.7s, OverallIterations: 280, TraceHistogramMax: 5, PathProgramHistogramMax: 80, EmptinessCheckTime: 7.3s, AutomataDifference: 489.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340446 SdHoareTripleChecker+Valid, 129.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340446 mSDsluCounter, 1219473 SdHoareTripleChecker+Invalid, 107.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 449 IncrementalHoareTripleChecker+Unchecked, 1126132 mSDsCounter, 3351 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337644 IncrementalHoareTripleChecker+Invalid, 341444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3351 mSolverCounterUnsat, 115966 mSDtfsCounter, 337644 mSolverCounterSat, 2.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18592 GetRequests, 3911 SyntacticMatches, 35 SemanticMatches, 14645 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375289 ImplicationChecksByTransitivity, 328.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44373occurred in iteration=255, InterpolantAutomatonStates: 11124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 128.6s AutomataMinimizationTime, 279 MinimizatonAttempts, 3299324 StatesRemovedByMinimization, 272 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 84.4s InterpolantComputationTime, 64803 NumberOfCodeBlocks, 64687 NumberOfCodeBlocksAsserted, 293 NumberOfCheckSat, 65765 ConstructedInterpolants, 33 QuantifiedInterpolants, 411002 SizeOfPredicates, 80 NumberOfNonLiveVariables, 3014 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 294 InterpolantComputations, 274 PerfectInterpolantSequences, 42912/43080 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown