/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:00:50,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:00:50,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:00:50,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 16:00:50,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 16:00:50,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 16:00:50,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 16:00:50,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 16:00:50,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 16:00:50,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 16:00:50,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 16:00:50,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 16:00:50,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 16:00:50,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 16:00:50,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 16:00:50,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 16:00:50,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 16:00:50,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 16:00:50,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 16:00:50,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 16:00:50,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 16:00:50,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 16:00:50,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 16:00:50,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 16:00:50,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 16:00:50,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 16:00:50,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 16:00:50,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 16:00:50,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 16:00:50,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 16:00:50,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 16:00:50,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 16:00:50,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 16:00:50,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 16:00:50,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 16:00:50,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 16:00:50,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 16:00:50,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 16:00:50,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:00:50,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:00:50,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:00:50,768 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.epf [2022-03-01 16:00:50,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:00:50,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:00:50,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:00:50,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:00:50,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:00:50,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:00:50,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:00:50,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:00:50,794 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:00:50,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:00:50,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:00:50,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:00:50,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:00:50,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:00:50,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:00:50,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:00:50,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:00:50,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:00:50,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:00:50,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:00:50,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:00:51,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:00:51,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:00:51,002 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:00:51,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-03-01 16:00:51,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16223c9c2/c6b105627ee745819ce479b5702bb8d1/FLAG786ac5a5f [2022-03-01 16:00:51,386 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:00:51,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-03-01 16:00:51,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16223c9c2/c6b105627ee745819ce479b5702bb8d1/FLAG786ac5a5f [2022-03-01 16:00:51,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16223c9c2/c6b105627ee745819ce479b5702bb8d1 [2022-03-01 16:00:51,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:00:51,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:00:51,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:00:51,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:00:51,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:00:51,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:00:51" (1/1) ... [2022-03-01 16:00:51,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa9af5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:51, skipping insertion in model container [2022-03-01 16:00:51,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:00:51" (1/1) ... [2022-03-01 16:00:51,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:00:51,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:00:52,065 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-03-01 16:00:52,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:00:52,083 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:00:52,118 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-03-01 16:00:52,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:00:52,136 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:00:52,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52 WrapperNode [2022-03-01 16:00:52,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:00:52,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:00:52,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:00:52,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:00:52,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,189 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-03-01 16:00:52,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:00:52,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:00:52,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:00:52,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:00:52,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:00:52,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:00:52,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:00:52,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:00:52,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (1/1) ... [2022-03-01 16:00:52,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:00:52,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:00:52,293 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) [2022-03-01 16:00:52,314 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 [2022-03-01 16:00:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:00:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:00:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:00:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:00:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:00:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:00:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:00:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:00:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 16:00:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:00:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:00:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:00:52,336 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 16:00:52,474 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:00:52,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:00:52,708 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:00:52,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:00:52,771 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-01 16:00:52,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:00:52 BoogieIcfgContainer [2022-03-01 16:00:52,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:00:52,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:00:52,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:00:52,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:00:52,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:00:51" (1/3) ... [2022-03-01 16:00:52,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e8a078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:00:52, skipping insertion in model container [2022-03-01 16:00:52,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:52" (2/3) ... [2022-03-01 16:00:52,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e8a078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:00:52, skipping insertion in model container [2022-03-01 16:00:52,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:00:52" (3/3) ... [2022-03-01 16:00:52,789 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-03-01 16:00:52,793 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:00:52,793 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:00:52,793 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:00:52,793 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:00:52,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,847 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,847 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,847 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,848 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,849 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,850 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,850 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,850 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,850 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,854 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,855 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,856 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:52,868 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 16:00:52,897 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:00:52,901 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 16:00:52,902 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 16:00:52,910 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 215 places, 223 transitions, 470 flow [2022-03-01 16:00:53,165 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:53,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:53,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-01 16:00:53,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:53,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:53,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:53,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash -559935921, now seen corresponding path program 1 times [2022-03-01 16:00:53,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:53,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307120974] [2022-03-01 16:00:53,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:53,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:00:53,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:53,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307120974] [2022-03-01 16:00:53,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307120974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:53,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:53,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 16:00:53,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070740832] [2022-03-01 16:00:53,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:53,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 16:00:53,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 16:00:53,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:00:53,548 INFO L87 Difference]: Start difference. First operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 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 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:53,668 INFO L93 Difference]: Finished difference Result 6644 states and 23512 transitions. [2022-03-01 16:00:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 16:00:53,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-03-01 16:00:53,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:53,726 INFO L225 Difference]: With dead ends: 6644 [2022-03-01 16:00:53,726 INFO L226 Difference]: Without dead ends: 6638 [2022-03-01 16:00:53,728 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 [2022-03-01 16:00:53,733 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:53,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:00:53,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2022-03-01 16:00:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2022-03-01 16:00:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 3.5416603887298477) internal successors, (23506), 6637 states have internal predecessors, (23506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 23506 transitions. [2022-03-01 16:00:54,103 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 23506 transitions. Word has length 159 [2022-03-01 16:00:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:00:54,104 INFO L470 AbstractCegarLoop]: Abstraction has 6638 states and 23506 transitions. [2022-03-01 16:00:54,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 23506 transitions. [2022-03-01 16:00:54,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-01 16:00:54,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:54,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:54,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:00:54,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash 864045723, now seen corresponding path program 1 times [2022-03-01 16:00:54,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:54,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592477582] [2022-03-01 16:00:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:00:54,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:54,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592477582] [2022-03-01 16:00:54,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592477582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:54,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:54,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:00:54,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960340357] [2022-03-01 16:00:54,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:54,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:00:54,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:54,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:00:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:00:54,394 INFO L87 Difference]: Start difference. First operand 6638 states and 23506 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:54,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:54,606 INFO L93 Difference]: Finished difference Result 7452 states and 25924 transitions. [2022-03-01 16:00:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:00:54,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-03-01 16:00:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:54,659 INFO L225 Difference]: With dead ends: 7452 [2022-03-01 16:00:54,659 INFO L226 Difference]: Without dead ends: 6644 [2022-03-01 16:00:54,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-01 16:00:54,660 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:54,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:00:54,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2022-03-01 16:00:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6639. [2022-03-01 16:00:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 3.5412774932208495) internal successors, (23507), 6638 states have internal predecessors, (23507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:54,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 23507 transitions. [2022-03-01 16:00:54,903 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 23507 transitions. Word has length 168 [2022-03-01 16:00:54,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:00:54,904 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 23507 transitions. [2022-03-01 16:00:54,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 23507 transitions. [2022-03-01 16:00:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-01 16:00:54,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:54,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:54,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:00:54,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599516, now seen corresponding path program 1 times [2022-03-01 16:00:54,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:54,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706064184] [2022-03-01 16:00:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:00:55,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:55,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706064184] [2022-03-01 16:00:55,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706064184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:55,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:55,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:00:55,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602990730] [2022-03-01 16:00:55,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:55,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:00:55,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:00:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:00:55,013 INFO L87 Difference]: Start difference. First operand 6639 states and 23507 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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) [2022-03-01 16:00:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:55,236 INFO L93 Difference]: Finished difference Result 8112 states and 28002 transitions. [2022-03-01 16:00:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:00:55,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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 175 [2022-03-01 16:00:55,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:55,274 INFO L225 Difference]: With dead ends: 8112 [2022-03-01 16:00:55,274 INFO L226 Difference]: Without dead ends: 6645 [2022-03-01 16:00:55,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:00:55,281 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 410 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:55,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:00:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-03-01 16:00:55,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6640. [2022-03-01 16:00:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 3.5408947130591955) internal successors, (23508), 6639 states have internal predecessors, (23508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:55,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 23508 transitions. [2022-03-01 16:00:55,479 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 23508 transitions. Word has length 175 [2022-03-01 16:00:55,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:00:55,480 INFO L470 AbstractCegarLoop]: Abstraction has 6640 states and 23508 transitions. [2022-03-01 16:00:55,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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) [2022-03-01 16:00:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 23508 transitions. [2022-03-01 16:00:55,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:00:55,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:55,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:55,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:00:55,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:55,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1706711251, now seen corresponding path program 1 times [2022-03-01 16:00:55,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:55,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301730122] [2022-03-01 16:00:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:00:56,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:56,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301730122] [2022-03-01 16:00:56,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301730122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:56,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:56,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:00:56,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480081883] [2022-03-01 16:00:56,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:56,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:00:56,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:56,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:00:56,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:00:56,488 INFO L87 Difference]: Start difference. First operand 6640 states and 23508 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:57,281 INFO L93 Difference]: Finished difference Result 14626 states and 52262 transitions. [2022-03-01 16:00:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:00:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:00:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:57,333 INFO L225 Difference]: With dead ends: 14626 [2022-03-01 16:00:57,333 INFO L226 Difference]: Without dead ends: 14476 [2022-03-01 16:00:57,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:00:57,334 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 605 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:57,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2864 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:00:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14476 states. [2022-03-01 16:00:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14476 to 7934. [2022-03-01 16:00:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7933 states have (on average 3.4975419135257786) internal successors, (27746), 7933 states have internal predecessors, (27746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 27746 transitions. [2022-03-01 16:00:57,601 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 27746 transitions. Word has length 182 [2022-03-01 16:00:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:00:57,602 INFO L470 AbstractCegarLoop]: Abstraction has 7934 states and 27746 transitions. [2022-03-01 16:00:57,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 27746 transitions. [2022-03-01 16:00:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:00:57,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:57,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:57,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 16:00:57,621 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:57,623 INFO L85 PathProgramCache]: Analyzing trace with hash -243046637, now seen corresponding path program 2 times [2022-03-01 16:00:57,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:57,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071647840] [2022-03-01 16:00:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:57,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:00:58,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:58,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071647840] [2022-03-01 16:00:58,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071647840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:58,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:58,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:00:58,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855922227] [2022-03-01 16:00:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:58,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:00:58,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:00:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:00:58,408 INFO L87 Difference]: Start difference. First operand 7934 states and 27746 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:58,982 INFO L93 Difference]: Finished difference Result 14222 states and 50838 transitions. [2022-03-01 16:00:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:00:58,982 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:00:58,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:59,032 INFO L225 Difference]: With dead ends: 14222 [2022-03-01 16:00:59,032 INFO L226 Difference]: Without dead ends: 14072 [2022-03-01 16:00:59,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:00:59,033 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 463 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:59,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2721 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:00:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-03-01 16:00:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 8942. [2022-03-01 16:00:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8941 states have (on average 3.486858293255788) internal successors, (31176), 8941 states have internal predecessors, (31176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 31176 transitions. [2022-03-01 16:00:59,344 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 31176 transitions. Word has length 182 [2022-03-01 16:00:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:00:59,344 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 31176 transitions. [2022-03-01 16:00:59,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 31176 transitions. [2022-03-01 16:00:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:00:59,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:59,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:00:59,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 16:00:59,364 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1793467055, now seen corresponding path program 3 times [2022-03-01 16:00:59,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:59,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110453963] [2022-03-01 16:00:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:59,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:00,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:00,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110453963] [2022-03-01 16:01:00,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110453963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:00,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:00,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:00,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54558307] [2022-03-01 16:01:00,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:00,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:00,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:00,007 INFO L87 Difference]: Start difference. First operand 8942 states and 31176 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:00,737 INFO L93 Difference]: Finished difference Result 15685 states and 55678 transitions. [2022-03-01 16:01:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:00,791 INFO L225 Difference]: With dead ends: 15685 [2022-03-01 16:01:00,792 INFO L226 Difference]: Without dead ends: 15535 [2022-03-01 16:01:00,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:00,793 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 645 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:00,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2755 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2022-03-01 16:01:01,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 9208. [2022-03-01 16:01:01,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-01 16:01:01,059 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-01 16:01:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:01,059 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-01 16:01:01,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-01 16:01:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:01,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:01,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:01,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 16:01:01,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1762356665, now seen corresponding path program 4 times [2022-03-01 16:01:01,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:01,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208858494] [2022-03-01 16:01:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:01,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:01,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208858494] [2022-03-01 16:01:01,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208858494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:01,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:01,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:01,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937516170] [2022-03-01 16:01:01,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:01,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:01,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:01,602 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:02,285 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-03-01 16:01:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:02,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:02,332 INFO L225 Difference]: With dead ends: 15244 [2022-03-01 16:01:02,332 INFO L226 Difference]: Without dead ends: 15094 [2022-03-01 16:01:02,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:02,335 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 577 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:02,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2576 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-03-01 16:01:02,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-03-01 16:01:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-01 16:01:02,593 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-01 16:01:02,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:02,595 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-01 16:01:02,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-01 16:01:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:02,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:02,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:02,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 16:01:02,617 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash -988028945, now seen corresponding path program 5 times [2022-03-01 16:01:02,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:02,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022462723] [2022-03-01 16:01:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:02,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:03,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:03,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022462723] [2022-03-01 16:01:03,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022462723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:03,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:03,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:03,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298513467] [2022-03-01 16:01:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:03,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:03,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:03,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:03,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:03,311 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:03,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:03,963 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-03-01 16:01:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:03,963 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:03,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:04,004 INFO L225 Difference]: With dead ends: 15244 [2022-03-01 16:01:04,004 INFO L226 Difference]: Without dead ends: 15094 [2022-03-01 16:01:04,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:04,005 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 539 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:04,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2571 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-03-01 16:01:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-03-01 16:01:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:04,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-01 16:01:04,248 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-01 16:01:04,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:04,249 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-01 16:01:04,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-01 16:01:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:04,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:04,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:04,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 16:01:04,266 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:04,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1830217275, now seen corresponding path program 6 times [2022-03-01 16:01:04,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:04,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832878674] [2022-03-01 16:01:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:04,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:04,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:04,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832878674] [2022-03-01 16:01:04,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832878674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:04,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:04,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:04,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491921736] [2022-03-01 16:01:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:04,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:04,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:04,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:04,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:04,885 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:05,505 INFO L93 Difference]: Finished difference Result 16354 states and 58195 transitions. [2022-03-01 16:01:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:05,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:05,548 INFO L225 Difference]: With dead ends: 16354 [2022-03-01 16:01:05,548 INFO L226 Difference]: Without dead ends: 16204 [2022-03-01 16:01:05,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:05,549 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 503 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:05,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2582 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16204 states. [2022-03-01 16:01:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16204 to 9320. [2022-03-01 16:01:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9320 states, 9319 states have (on average 3.495546732482026) internal successors, (32575), 9319 states have internal predecessors, (32575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 32575 transitions. [2022-03-01 16:01:05,794 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 32575 transitions. Word has length 182 [2022-03-01 16:01:05,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:05,794 INFO L470 AbstractCegarLoop]: Abstraction has 9320 states and 32575 transitions. [2022-03-01 16:01:05,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 32575 transitions. [2022-03-01 16:01:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:05,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:05,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:05,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 16:01:05,812 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:05,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1356367291, now seen corresponding path program 7 times [2022-03-01 16:01:05,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:05,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250967485] [2022-03-01 16:01:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:05,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:06,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:06,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250967485] [2022-03-01 16:01:06,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250967485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:06,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:06,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:06,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69463149] [2022-03-01 16:01:06,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:06,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:06,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:06,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:06,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:06,278 INFO L87 Difference]: Start difference. First operand 9320 states and 32575 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:06,919 INFO L93 Difference]: Finished difference Result 15118 states and 54397 transitions. [2022-03-01 16:01:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:06,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:06,961 INFO L225 Difference]: With dead ends: 15118 [2022-03-01 16:01:06,961 INFO L226 Difference]: Without dead ends: 14896 [2022-03-01 16:01:06,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:06,964 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 350 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:06,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2988 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-03-01 16:01:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 9504. [2022-03-01 16:01:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 9503 states have (on average 3.500473534673261) internal successors, (33265), 9503 states have internal predecessors, (33265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 33265 transitions. [2022-03-01 16:01:07,300 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 33265 transitions. Word has length 182 [2022-03-01 16:01:07,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:07,301 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 33265 transitions. [2022-03-01 16:01:07,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 33265 transitions. [2022-03-01 16:01:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:07,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:07,319 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:07,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 16:01:07,319 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:07,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:07,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2099447355, now seen corresponding path program 8 times [2022-03-01 16:01:07,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:07,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522358358] [2022-03-01 16:01:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:07,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:07,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522358358] [2022-03-01 16:01:07,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522358358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:07,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:07,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:07,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276804882] [2022-03-01 16:01:07,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:07,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:07,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:07,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:07,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:07,940 INFO L87 Difference]: Start difference. First operand 9504 states and 33265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:08,480 INFO L93 Difference]: Finished difference Result 16088 states and 57607 transitions. [2022-03-01 16:01:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:08,524 INFO L225 Difference]: With dead ends: 16088 [2022-03-01 16:01:08,524 INFO L226 Difference]: Without dead ends: 15938 [2022-03-01 16:01:08,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:08,525 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 537 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:08,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2245 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-03-01 16:01:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 9568. [2022-03-01 16:01:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-01 16:01:08,800 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-01 16:01:08,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:08,800 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-01 16:01:08,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-01 16:01:08,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:08,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:08,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:08,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 16:01:08,817 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1387220523, now seen corresponding path program 9 times [2022-03-01 16:01:08,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:08,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382812972] [2022-03-01 16:01:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:08,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:09,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:09,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382812972] [2022-03-01 16:01:09,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382812972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:09,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:09,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:09,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390652073] [2022-03-01 16:01:09,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:09,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:09,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:09,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:09,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:09,345 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:09,935 INFO L93 Difference]: Finished difference Result 15772 states and 56589 transitions. [2022-03-01 16:01:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:09,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:09,974 INFO L225 Difference]: With dead ends: 15772 [2022-03-01 16:01:09,974 INFO L226 Difference]: Without dead ends: 15622 [2022-03-01 16:01:09,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:09,975 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 458 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:09,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2624 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-03-01 16:01:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 9568. [2022-03-01 16:01:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-01 16:01:10,187 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-01 16:01:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:10,187 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-01 16:01:10,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-01 16:01:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:10,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:10,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 16:01:10,204 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1183078429, now seen corresponding path program 10 times [2022-03-01 16:01:10,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:10,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279046873] [2022-03-01 16:01:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:10,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:10,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:10,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279046873] [2022-03-01 16:01:10,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279046873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:10,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:10,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:10,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916297884] [2022-03-01 16:01:10,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:10,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:10,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:10,755 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:11,344 INFO L93 Difference]: Finished difference Result 15732 states and 56439 transitions. [2022-03-01 16:01:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:01:11,345 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:11,383 INFO L225 Difference]: With dead ends: 15732 [2022-03-01 16:01:11,383 INFO L226 Difference]: Without dead ends: 15582 [2022-03-01 16:01:11,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:11,386 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 451 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:11,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2539 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15582 states. [2022-03-01 16:01:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15582 to 9568. [2022-03-01 16:01:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-01 16:01:11,606 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-01 16:01:11,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:11,606 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-01 16:01:11,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-01 16:01:11,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:11,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:11,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:11,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 16:01:11,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:11,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:11,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1817055227, now seen corresponding path program 11 times [2022-03-01 16:01:11,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:11,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253143305] [2022-03-01 16:01:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:11,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:12,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:12,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253143305] [2022-03-01 16:01:12,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253143305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:12,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:12,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:12,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21197017] [2022-03-01 16:01:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:12,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:12,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:12,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:12,113 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:12,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:12,579 INFO L93 Difference]: Finished difference Result 14869 states and 53304 transitions. [2022-03-01 16:01:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:12,579 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:12,616 INFO L225 Difference]: With dead ends: 14869 [2022-03-01 16:01:12,616 INFO L226 Difference]: Without dead ends: 14719 [2022-03-01 16:01:12,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:12,617 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 343 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:12,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2386 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:12,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2022-03-01 16:01:12,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 9792. [2022-03-01 16:01:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-01 16:01:12,817 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-01 16:01:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:12,817 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-01 16:01:12,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-01 16:01:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:12,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:12,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:12,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 16:01:12,845 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2063128839, now seen corresponding path program 12 times [2022-03-01 16:01:12,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:12,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909757253] [2022-03-01 16:01:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:13,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:13,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909757253] [2022-03-01 16:01:13,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909757253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:13,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:13,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:13,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956197612] [2022-03-01 16:01:13,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:13,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:13,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:13,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:13,255 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:13,788 INFO L93 Difference]: Finished difference Result 14770 states and 53097 transitions. [2022-03-01 16:01:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:13,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:13,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:13,826 INFO L225 Difference]: With dead ends: 14770 [2022-03-01 16:01:13,827 INFO L226 Difference]: Without dead ends: 14548 [2022-03-01 16:01:13,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:13,827 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 489 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:13,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2262 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-03-01 16:01:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 9792. [2022-03-01 16:01:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-01 16:01:14,011 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-01 16:01:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:14,012 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-01 16:01:14,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-01 16:01:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:14,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:14,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:14,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 16:01:14,028 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:14,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:14,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1986285691, now seen corresponding path program 13 times [2022-03-01 16:01:14,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:14,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905494026] [2022-03-01 16:01:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:14,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:14,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905494026] [2022-03-01 16:01:14,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905494026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:14,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:14,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:14,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519139941] [2022-03-01 16:01:14,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:14,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:14,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:14,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:14,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:14,509 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:15,013 INFO L93 Difference]: Finished difference Result 15499 states and 55404 transitions. [2022-03-01 16:01:15,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:15,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:15,052 INFO L225 Difference]: With dead ends: 15499 [2022-03-01 16:01:15,052 INFO L226 Difference]: Without dead ends: 15349 [2022-03-01 16:01:15,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:15,053 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 407 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:15,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2704 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15349 states. [2022-03-01 16:01:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15349 to 9897. [2022-03-01 16:01:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9897 states, 9896 states have (on average 3.5198059822150363) internal successors, (34832), 9896 states have internal predecessors, (34832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9897 states to 9897 states and 34832 transitions. [2022-03-01 16:01:15,249 INFO L78 Accepts]: Start accepts. Automaton has 9897 states and 34832 transitions. Word has length 182 [2022-03-01 16:01:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:15,250 INFO L470 AbstractCegarLoop]: Abstraction has 9897 states and 34832 transitions. [2022-03-01 16:01:15,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 9897 states and 34832 transitions. [2022-03-01 16:01:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:15,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:15,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:15,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 16:01:15,266 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1909051591, now seen corresponding path program 14 times [2022-03-01 16:01:15,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:15,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459267286] [2022-03-01 16:01:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:15,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:15,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:15,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459267286] [2022-03-01 16:01:15,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459267286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:15,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:15,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:15,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586815490] [2022-03-01 16:01:15,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:15,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:15,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:15,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:15,725 INFO L87 Difference]: Start difference. First operand 9897 states and 34832 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:16,142 INFO L93 Difference]: Finished difference Result 15868 states and 56775 transitions. [2022-03-01 16:01:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:16,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:16,184 INFO L225 Difference]: With dead ends: 15868 [2022-03-01 16:01:16,185 INFO L226 Difference]: Without dead ends: 15718 [2022-03-01 16:01:16,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:16,186 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 458 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:16,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2504 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:16,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2022-03-01 16:01:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 9792. [2022-03-01 16:01:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-01 16:01:16,432 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-01 16:01:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:16,433 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-01 16:01:16,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-01 16:01:16,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:16,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:16,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:16,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 16:01:16,450 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1735467003, now seen corresponding path program 15 times [2022-03-01 16:01:16,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:16,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701067890] [2022-03-01 16:01:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:16,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:16,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:16,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701067890] [2022-03-01 16:01:16,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701067890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:16,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:16,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:16,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702206373] [2022-03-01 16:01:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:16,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:16,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:16,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:16,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:16,873 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:17,395 INFO L93 Difference]: Finished difference Result 15130 states and 54471 transitions. [2022-03-01 16:01:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:17,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:17,433 INFO L225 Difference]: With dead ends: 15130 [2022-03-01 16:01:17,434 INFO L226 Difference]: Without dead ends: 14908 [2022-03-01 16:01:17,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:17,434 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 374 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:17,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2317 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-03-01 16:01:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 9824. [2022-03-01 16:01:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9823 states have (on average 3.512674335742645) internal successors, (34505), 9823 states have internal predecessors, (34505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:17,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 34505 transitions. [2022-03-01 16:01:17,641 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 34505 transitions. Word has length 182 [2022-03-01 16:01:17,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:17,642 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 34505 transitions. [2022-03-01 16:01:17,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 34505 transitions. [2022-03-01 16:01:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:17,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:17,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:17,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 16:01:17,659 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:17,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1722757253, now seen corresponding path program 16 times [2022-03-01 16:01:17,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:17,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116486663] [2022-03-01 16:01:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:17,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:18,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:18,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116486663] [2022-03-01 16:01:18,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116486663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:18,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:18,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:18,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817995484] [2022-03-01 16:01:18,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:18,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:18,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:18,160 INFO L87 Difference]: Start difference. First operand 9824 states and 34505 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:18,583 INFO L93 Difference]: Finished difference Result 15598 states and 56025 transitions. [2022-03-01 16:01:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:18,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:18,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:18,622 INFO L225 Difference]: With dead ends: 15598 [2022-03-01 16:01:18,622 INFO L226 Difference]: Without dead ends: 15448 [2022-03-01 16:01:18,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:18,623 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 528 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:18,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1932 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2022-03-01 16:01:18,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 9792. [2022-03-01 16:01:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-01 16:01:18,836 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-01 16:01:18,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:18,836 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-01 16:01:18,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-01 16:01:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:18,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:18,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:18,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 16:01:18,853 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash 977182485, now seen corresponding path program 17 times [2022-03-01 16:01:18,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:18,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695993720] [2022-03-01 16:01:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:19,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:19,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:19,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695993720] [2022-03-01 16:01:19,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695993720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:19,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:19,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:19,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29912264] [2022-03-01 16:01:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:19,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:19,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:19,324 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:19,803 INFO L93 Difference]: Finished difference Result 15282 states and 54634 transitions. [2022-03-01 16:01:19,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:19,804 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:19,841 INFO L225 Difference]: With dead ends: 15282 [2022-03-01 16:01:19,841 INFO L226 Difference]: Without dead ends: 15132 [2022-03-01 16:01:19,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:19,842 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 352 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:19,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2515 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15132 states. [2022-03-01 16:01:20,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15132 to 9582. [2022-03-01 16:01:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 3.5040183696900113) internal successors, (33572), 9581 states have internal predecessors, (33572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 33572 transitions. [2022-03-01 16:01:20,048 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 33572 transitions. Word has length 182 [2022-03-01 16:01:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:20,049 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 33572 transitions. [2022-03-01 16:01:20,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 33572 transitions. [2022-03-01 16:01:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:20,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:20,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:20,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 16:01:20,065 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:20,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2088446317, now seen corresponding path program 18 times [2022-03-01 16:01:20,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:20,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147181446] [2022-03-01 16:01:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:20,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:20,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147181446] [2022-03-01 16:01:20,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147181446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:20,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:20,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:20,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873531753] [2022-03-01 16:01:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:20,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:20,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:20,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:20,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:20,559 INFO L87 Difference]: Start difference. First operand 9582 states and 33572 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:20,969 INFO L93 Difference]: Finished difference Result 14888 states and 53562 transitions. [2022-03-01 16:01:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:21,031 INFO L225 Difference]: With dead ends: 14888 [2022-03-01 16:01:21,032 INFO L226 Difference]: Without dead ends: 14666 [2022-03-01 16:01:21,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:01:21,033 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:21,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2686 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:21,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-03-01 16:01:21,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 9518. [2022-03-01 16:01:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9517 states have (on average 3.499001786277188) internal successors, (33300), 9517 states have internal predecessors, (33300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 33300 transitions. [2022-03-01 16:01:21,243 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 33300 transitions. Word has length 182 [2022-03-01 16:01:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:21,244 INFO L470 AbstractCegarLoop]: Abstraction has 9518 states and 33300 transitions. [2022-03-01 16:01:21,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 33300 transitions. [2022-03-01 16:01:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:21,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:21,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:21,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 16:01:21,262 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -266734529, now seen corresponding path program 19 times [2022-03-01 16:01:21,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:21,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163764247] [2022-03-01 16:01:21,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:21,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:21,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163764247] [2022-03-01 16:01:21,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163764247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:21,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:21,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 16:01:21,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811935855] [2022-03-01 16:01:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:21,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 16:01:21,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:21,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 16:01:21,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:01:21,308 INFO L87 Difference]: Start difference. First operand 9518 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:21,358 INFO L93 Difference]: Finished difference Result 9244 states and 32213 transitions. [2022-03-01 16:01:21,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 16:01:21,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:21,379 INFO L225 Difference]: With dead ends: 9244 [2022-03-01 16:01:21,379 INFO L226 Difference]: Without dead ends: 9244 [2022-03-01 16:01:21,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:01:21,380 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 20 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:21,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 272 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:01:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-03-01 16:01:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-03-01 16:01:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.485123877528941) internal successors, (32213), 9243 states have internal predecessors, (32213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 32213 transitions. [2022-03-01 16:01:21,528 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 32213 transitions. Word has length 182 [2022-03-01 16:01:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:21,528 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 32213 transitions. [2022-03-01 16:01:21,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 32213 transitions. [2022-03-01 16:01:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:21,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:21,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 16:01:21,544 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 994364243, now seen corresponding path program 20 times [2022-03-01 16:01:21,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:21,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190405588] [2022-03-01 16:01:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:21,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:21,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190405588] [2022-03-01 16:01:21,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190405588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:21,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:21,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 16:01:21,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544223523] [2022-03-01 16:01:21,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:21,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 16:01:21,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 16:01:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:01:21,608 INFO L87 Difference]: Start difference. First operand 9244 states and 32213 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:21,657 INFO L93 Difference]: Finished difference Result 8392 states and 28671 transitions. [2022-03-01 16:01:21,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 16:01:21,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:21,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:21,675 INFO L225 Difference]: With dead ends: 8392 [2022-03-01 16:01:21,675 INFO L226 Difference]: Without dead ends: 8392 [2022-03-01 16:01:21,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:01:21,676 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 38 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:21,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 243 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:01:21,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-03-01 16:01:21,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2022-03-01 16:01:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 3.4168752234537005) internal successors, (28671), 8391 states have internal predecessors, (28671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 28671 transitions. [2022-03-01 16:01:21,805 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 28671 transitions. Word has length 182 [2022-03-01 16:01:21,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:21,805 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 28671 transitions. [2022-03-01 16:01:21,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 28671 transitions. [2022-03-01 16:01:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:21,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:21,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:21,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 16:01:21,819 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 418727083, now seen corresponding path program 21 times [2022-03-01 16:01:21,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:21,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985202792] [2022-03-01 16:01:21,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:21,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:22,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:22,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985202792] [2022-03-01 16:01:22,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985202792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:22,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:22,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:22,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449771401] [2022-03-01 16:01:22,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:22,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:22,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:22,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:22,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:22,286 INFO L87 Difference]: Start difference. First operand 8392 states and 28671 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:22,683 INFO L93 Difference]: Finished difference Result 10386 states and 35499 transitions. [2022-03-01 16:01:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:22,707 INFO L225 Difference]: With dead ends: 10386 [2022-03-01 16:01:22,708 INFO L226 Difference]: Without dead ends: 10236 [2022-03-01 16:01:22,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:22,708 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 291 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2377 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:22,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-03-01 16:01:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 8560. [2022-03-01 16:01:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.4192078513845074) internal successors, (29265), 8559 states have internal predecessors, (29265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29265 transitions. [2022-03-01 16:01:22,863 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29265 transitions. Word has length 182 [2022-03-01 16:01:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:22,863 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29265 transitions. [2022-03-01 16:01:22,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29265 transitions. [2022-03-01 16:01:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:22,878 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:22,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:22,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 16:01:22,878 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:22,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash 833510313, now seen corresponding path program 22 times [2022-03-01 16:01:22,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:22,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847994883] [2022-03-01 16:01:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:23,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:23,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847994883] [2022-03-01 16:01:23,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847994883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:23,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:23,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:23,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134560878] [2022-03-01 16:01:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:23,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:23,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:23,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:23,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:23,267 INFO L87 Difference]: Start difference. First operand 8560 states and 29265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:23,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:23,619 INFO L93 Difference]: Finished difference Result 10404 states and 35598 transitions. [2022-03-01 16:01:23,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:23,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:23,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:23,642 INFO L225 Difference]: With dead ends: 10404 [2022-03-01 16:01:23,642 INFO L226 Difference]: Without dead ends: 10218 [2022-03-01 16:01:23,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:23,643 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 476 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:23,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1989 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:23,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-03-01 16:01:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8536. [2022-03-01 16:01:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-03-01 16:01:23,793 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-03-01 16:01:23,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:23,794 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-03-01 16:01:23,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-03-01 16:01:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:23,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:23,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:23,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 16:01:23,809 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash -700910965, now seen corresponding path program 23 times [2022-03-01 16:01:23,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:23,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040743923] [2022-03-01 16:01:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:23,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:24,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:24,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040743923] [2022-03-01 16:01:24,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040743923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:24,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:24,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:24,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595376723] [2022-03-01 16:01:24,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:24,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:24,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:24,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:24,244 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:24,679 INFO L93 Difference]: Finished difference Result 10566 states and 36099 transitions. [2022-03-01 16:01:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:24,702 INFO L225 Difference]: With dead ends: 10566 [2022-03-01 16:01:24,702 INFO L226 Difference]: Without dead ends: 10416 [2022-03-01 16:01:24,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:24,703 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 279 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:24,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2699 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-03-01 16:01:24,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 8566. [2022-03-01 16:01:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8565 states have (on average 3.422416812609457) internal successors, (29313), 8565 states have internal predecessors, (29313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 29313 transitions. [2022-03-01 16:01:24,841 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 29313 transitions. Word has length 182 [2022-03-01 16:01:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:24,841 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 29313 transitions. [2022-03-01 16:01:24,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 29313 transitions. [2022-03-01 16:01:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:24,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:24,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:24,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 16:01:24,855 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:24,855 INFO L85 PathProgramCache]: Analyzing trace with hash -301280951, now seen corresponding path program 24 times [2022-03-01 16:01:24,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:24,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543688057] [2022-03-01 16:01:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:24,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:25,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:25,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543688057] [2022-03-01 16:01:25,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543688057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:25,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:25,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:25,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680842087] [2022-03-01 16:01:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:25,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:25,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:25,361 INFO L87 Difference]: Start difference. First operand 8566 states and 29313 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:25,747 INFO L93 Difference]: Finished difference Result 11160 states and 38145 transitions. [2022-03-01 16:01:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:25,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:25,772 INFO L225 Difference]: With dead ends: 11160 [2022-03-01 16:01:25,772 INFO L226 Difference]: Without dead ends: 11010 [2022-03-01 16:01:25,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:25,774 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 514 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:25,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 2045 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-01 16:01:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8536. [2022-03-01 16:01:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-03-01 16:01:25,930 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-03-01 16:01:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:25,930 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-03-01 16:01:25,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-03-01 16:01:25,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:25,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:25,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:25,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 16:01:25,945 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:25,945 INFO L85 PathProgramCache]: Analyzing trace with hash -951729653, now seen corresponding path program 25 times [2022-03-01 16:01:25,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:25,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230901887] [2022-03-01 16:01:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:25,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:26,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:26,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230901887] [2022-03-01 16:01:26,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230901887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:26,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:26,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:26,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713282379] [2022-03-01 16:01:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:26,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:26,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:26,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:26,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:26,466 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:26,865 INFO L93 Difference]: Finished difference Result 10584 states and 36285 transitions. [2022-03-01 16:01:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:26,865 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:26,889 INFO L225 Difference]: With dead ends: 10584 [2022-03-01 16:01:26,889 INFO L226 Difference]: Without dead ends: 10398 [2022-03-01 16:01:26,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:26,890 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 281 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:26,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2495 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-03-01 16:01:27,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8552. [2022-03-01 16:01:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4203017190971816) internal successors, (29247), 8551 states have internal predecessors, (29247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29247 transitions. [2022-03-01 16:01:27,078 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29247 transitions. Word has length 182 [2022-03-01 16:01:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:27,078 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29247 transitions. [2022-03-01 16:01:27,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29247 transitions. [2022-03-01 16:01:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:27,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:27,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:27,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 16:01:27,110 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:27,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:27,111 INFO L85 PathProgramCache]: Analyzing trace with hash -114986613, now seen corresponding path program 26 times [2022-03-01 16:01:27,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:27,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541822979] [2022-03-01 16:01:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:27,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:27,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:27,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541822979] [2022-03-01 16:01:27,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541822979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:27,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:27,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:27,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271620047] [2022-03-01 16:01:27,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:27,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:27,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:27,550 INFO L87 Difference]: Start difference. First operand 8552 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:27,919 INFO L93 Difference]: Finished difference Result 11160 states and 38220 transitions. [2022-03-01 16:01:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:27,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:27,944 INFO L225 Difference]: With dead ends: 11160 [2022-03-01 16:01:27,944 INFO L226 Difference]: Without dead ends: 11010 [2022-03-01 16:01:27,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:27,945 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 469 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:27,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2313 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-01 16:01:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8528. [2022-03-01 16:01:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-03-01 16:01:28,115 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-03-01 16:01:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:28,115 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-03-01 16:01:28,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-03-01 16:01:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:28,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:28,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:28,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 16:01:28,130 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:28,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:28,131 INFO L85 PathProgramCache]: Analyzing trace with hash -922837013, now seen corresponding path program 27 times [2022-03-01 16:01:28,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:28,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733838763] [2022-03-01 16:01:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:28,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:28,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733838763] [2022-03-01 16:01:28,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733838763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:28,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:28,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:28,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778770191] [2022-03-01 16:01:28,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:28,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:28,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:28,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:28,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:28,579 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:29,014 INFO L93 Difference]: Finished difference Result 10698 states and 36474 transitions. [2022-03-01 16:01:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:29,038 INFO L225 Difference]: With dead ends: 10698 [2022-03-01 16:01:29,038 INFO L226 Difference]: Without dead ends: 10548 [2022-03-01 16:01:29,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:29,039 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 444 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:29,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2424 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:29,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-01 16:01:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8588. [2022-03-01 16:01:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 3.420868755094911) internal successors, (29375), 8587 states have internal predecessors, (29375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 29375 transitions. [2022-03-01 16:01:29,192 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 29375 transitions. Word has length 182 [2022-03-01 16:01:29,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:29,192 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 29375 transitions. [2022-03-01 16:01:29,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 29375 transitions. [2022-03-01 16:01:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:29,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:29,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:29,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 16:01:29,206 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -523206999, now seen corresponding path program 28 times [2022-03-01 16:01:29,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:29,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447425462] [2022-03-01 16:01:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:29,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:29,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447425462] [2022-03-01 16:01:29,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447425462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:29,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:29,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:29,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541802294] [2022-03-01 16:01:29,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:29,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:29,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:29,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:29,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:29,738 INFO L87 Difference]: Start difference. First operand 8588 states and 29375 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:30,210 INFO L93 Difference]: Finished difference Result 11382 states and 38790 transitions. [2022-03-01 16:01:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:30,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:30,236 INFO L225 Difference]: With dead ends: 11382 [2022-03-01 16:01:30,236 INFO L226 Difference]: Without dead ends: 11232 [2022-03-01 16:01:30,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:30,237 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 446 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:30,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2426 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11232 states. [2022-03-01 16:01:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11232 to 8558. [2022-03-01 16:01:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 3.4176697440691832) internal successors, (29245), 8557 states have internal predecessors, (29245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 29245 transitions. [2022-03-01 16:01:30,394 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 29245 transitions. Word has length 182 [2022-03-01 16:01:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:30,395 INFO L470 AbstractCegarLoop]: Abstraction has 8558 states and 29245 transitions. [2022-03-01 16:01:30,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 29245 transitions. [2022-03-01 16:01:30,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:30,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:30,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:30,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 16:01:30,409 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:30,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash 2124387601, now seen corresponding path program 29 times [2022-03-01 16:01:30,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:30,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798052100] [2022-03-01 16:01:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:30,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:30,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:30,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798052100] [2022-03-01 16:01:30,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798052100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:30,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:30,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:30,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401758718] [2022-03-01 16:01:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:30,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:30,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:30,904 INFO L87 Difference]: Start difference. First operand 8558 states and 29245 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:31,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:31,354 INFO L93 Difference]: Finished difference Result 11484 states and 39204 transitions. [2022-03-01 16:01:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:31,354 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:31,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:31,379 INFO L225 Difference]: With dead ends: 11484 [2022-03-01 16:01:31,380 INFO L226 Difference]: Without dead ends: 11334 [2022-03-01 16:01:31,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:31,382 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 457 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:31,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2216 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-01 16:01:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8528. [2022-03-01 16:01:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-03-01 16:01:31,540 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-03-01 16:01:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:31,540 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-03-01 16:01:31,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:31,540 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-03-01 16:01:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:31,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:31,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:31,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 16:01:31,555 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:31,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash 306501481, now seen corresponding path program 30 times [2022-03-01 16:01:31,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:31,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361163037] [2022-03-01 16:01:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:31,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:31,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361163037] [2022-03-01 16:01:31,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361163037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:31,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:31,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:31,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575252979] [2022-03-01 16:01:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:31,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:31,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:31,970 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:32,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:32,318 INFO L93 Difference]: Finished difference Result 10608 states and 36399 transitions. [2022-03-01 16:01:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:32,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:32,345 INFO L225 Difference]: With dead ends: 10608 [2022-03-01 16:01:32,346 INFO L226 Difference]: Without dead ends: 10422 [2022-03-01 16:01:32,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:32,346 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:32,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 2365 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10422 states. [2022-03-01 16:01:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10422 to 8560. [2022-03-01 16:01:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.419675195700432) internal successors, (29269), 8559 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29269 transitions. [2022-03-01 16:01:32,500 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29269 transitions. Word has length 182 [2022-03-01 16:01:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:32,501 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29269 transitions. [2022-03-01 16:01:32,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29269 transitions. [2022-03-01 16:01:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:32,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:32,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:32,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 16:01:32,517 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1143244521, now seen corresponding path program 31 times [2022-03-01 16:01:32,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:32,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593456831] [2022-03-01 16:01:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:33,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:33,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593456831] [2022-03-01 16:01:33,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593456831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:33,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:33,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:33,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872404918] [2022-03-01 16:01:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:33,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:33,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:33,006 INFO L87 Difference]: Start difference. First operand 8560 states and 29269 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:33,476 INFO L93 Difference]: Finished difference Result 11256 states and 38580 transitions. [2022-03-01 16:01:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:33,502 INFO L225 Difference]: With dead ends: 11256 [2022-03-01 16:01:33,503 INFO L226 Difference]: Without dead ends: 11106 [2022-03-01 16:01:33,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:33,503 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 358 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:33,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2787 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-03-01 16:01:33,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 8544. [2022-03-01 16:01:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8544 states, 8543 states have (on average 3.418588317921105) internal successors, (29205), 8543 states have internal predecessors, (29205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8544 states to 8544 states and 29205 transitions. [2022-03-01 16:01:33,663 INFO L78 Accepts]: Start accepts. Automaton has 8544 states and 29205 transitions. Word has length 182 [2022-03-01 16:01:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:33,663 INFO L470 AbstractCegarLoop]: Abstraction has 8544 states and 29205 transitions. [2022-03-01 16:01:33,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8544 states and 29205 transitions. [2022-03-01 16:01:33,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:33,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:33,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:33,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 16:01:33,679 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:33,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:33,679 INFO L85 PathProgramCache]: Analyzing trace with hash -690422513, now seen corresponding path program 32 times [2022-03-01 16:01:33,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:33,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319244394] [2022-03-01 16:01:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:34,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:34,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319244394] [2022-03-01 16:01:34,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319244394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:34,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:34,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:34,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181778123] [2022-03-01 16:01:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:34,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:34,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:34,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:34,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:34,132 INFO L87 Difference]: Start difference. First operand 8544 states and 29205 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:34,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:34,595 INFO L93 Difference]: Finished difference Result 11358 states and 38919 transitions. [2022-03-01 16:01:34,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:34,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:34,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:34,621 INFO L225 Difference]: With dead ends: 11358 [2022-03-01 16:01:34,621 INFO L226 Difference]: Without dead ends: 11208 [2022-03-01 16:01:34,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:34,622 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 357 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:34,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2490 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-03-01 16:01:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8520. [2022-03-01 16:01:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-03-01 16:01:34,782 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-03-01 16:01:34,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:34,782 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-03-01 16:01:34,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:34,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-03-01 16:01:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:34,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:34,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:34,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 16:01:34,797 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:34,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash 501633739, now seen corresponding path program 33 times [2022-03-01 16:01:34,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:34,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965567111] [2022-03-01 16:01:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:34,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:35,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:35,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965567111] [2022-03-01 16:01:35,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965567111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:35,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:35,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:35,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386987665] [2022-03-01 16:01:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:35,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:35,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:35,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:35,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:35,211 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:35,608 INFO L93 Difference]: Finished difference Result 10690 states and 36444 transitions. [2022-03-01 16:01:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:35,608 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:35,634 INFO L225 Difference]: With dead ends: 10690 [2022-03-01 16:01:35,634 INFO L226 Difference]: Without dead ends: 10540 [2022-03-01 16:01:35,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:35,635 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 407 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:35,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-03-01 16:01:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8820. [2022-03-01 16:01:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 3.409683637600635) internal successors, (30070), 8819 states have internal predecessors, (30070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 30070 transitions. [2022-03-01 16:01:35,794 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 30070 transitions. Word has length 182 [2022-03-01 16:01:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:35,794 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 30070 transitions. [2022-03-01 16:01:35,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 30070 transitions. [2022-03-01 16:01:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:35,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:35,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:35,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 16:01:35,811 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash 901263753, now seen corresponding path program 34 times [2022-03-01 16:01:35,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:35,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269229100] [2022-03-01 16:01:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:35,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:36,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:36,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269229100] [2022-03-01 16:01:36,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269229100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:36,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:36,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:36,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659537615] [2022-03-01 16:01:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:36,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:36,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:36,308 INFO L87 Difference]: Start difference. First operand 8820 states and 30070 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:36,828 INFO L93 Difference]: Finished difference Result 11550 states and 39376 transitions. [2022-03-01 16:01:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:36,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:36,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:36,854 INFO L225 Difference]: With dead ends: 11550 [2022-03-01 16:01:36,855 INFO L226 Difference]: Without dead ends: 11400 [2022-03-01 16:01:36,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:36,855 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 437 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:36,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2583 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:01:36,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-03-01 16:01:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 8790. [2022-03-01 16:01:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 8789 states have (on average 3.406530890886335) internal successors, (29940), 8789 states have internal predecessors, (29940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 29940 transitions. [2022-03-01 16:01:37,011 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 29940 transitions. Word has length 182 [2022-03-01 16:01:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:37,011 INFO L470 AbstractCegarLoop]: Abstraction has 8790 states and 29940 transitions. [2022-03-01 16:01:37,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 29940 transitions. [2022-03-01 16:01:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:37,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:37,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:37,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 16:01:37,027 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -746108943, now seen corresponding path program 35 times [2022-03-01 16:01:37,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:37,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075807035] [2022-03-01 16:01:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:37,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:37,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075807035] [2022-03-01 16:01:37,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075807035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:37,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:37,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:37,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520193930] [2022-03-01 16:01:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:37,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:37,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:37,479 INFO L87 Difference]: Start difference. First operand 8790 states and 29940 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:37,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:37,953 INFO L93 Difference]: Finished difference Result 11685 states and 39866 transitions. [2022-03-01 16:01:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:37,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:37,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:37,982 INFO L225 Difference]: With dead ends: 11685 [2022-03-01 16:01:37,982 INFO L226 Difference]: Without dead ends: 11535 [2022-03-01 16:01:37,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:37,983 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 468 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:37,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2252 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:37,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-03-01 16:01:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 8760. [2022-03-01 16:01:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 8759 states have (on average 3.406781596072611) internal successors, (29840), 8759 states have internal predecessors, (29840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 29840 transitions. [2022-03-01 16:01:38,154 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 29840 transitions. Word has length 182 [2022-03-01 16:01:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:38,154 INFO L470 AbstractCegarLoop]: Abstraction has 8760 states and 29840 transitions. [2022-03-01 16:01:38,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:38,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 29840 transitions. [2022-03-01 16:01:38,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:38,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:38,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:38,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 16:01:38,169 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:38,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1833174183, now seen corresponding path program 36 times [2022-03-01 16:01:38,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:38,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014307704] [2022-03-01 16:01:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:38,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:38,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:38,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014307704] [2022-03-01 16:01:38,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014307704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:38,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:38,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:38,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510397398] [2022-03-01 16:01:38,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:38,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:38,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:38,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:38,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:38,590 INFO L87 Difference]: Start difference. First operand 8760 states and 29840 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:38,958 INFO L93 Difference]: Finished difference Result 11454 states and 39104 transitions. [2022-03-01 16:01:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:38,958 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:38,984 INFO L225 Difference]: With dead ends: 11454 [2022-03-01 16:01:38,985 INFO L226 Difference]: Without dead ends: 11304 [2022-03-01 16:01:38,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:38,986 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:38,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2555 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-03-01 16:01:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 8520. [2022-03-01 16:01:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-03-01 16:01:39,137 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-03-01 16:01:39,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:39,137 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-03-01 16:01:39,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-03-01 16:01:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:39,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:39,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:39,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 16:01:39,152 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:39,157 INFO L85 PathProgramCache]: Analyzing trace with hash 371204619, now seen corresponding path program 37 times [2022-03-01 16:01:39,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:39,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153980419] [2022-03-01 16:01:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:39,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:39,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153980419] [2022-03-01 16:01:39,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153980419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:39,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:39,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:39,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376648514] [2022-03-01 16:01:39,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:39,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:39,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:39,582 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:39,978 INFO L93 Difference]: Finished difference Result 10600 states and 36369 transitions. [2022-03-01 16:01:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:39,978 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:40,004 INFO L225 Difference]: With dead ends: 10600 [2022-03-01 16:01:40,005 INFO L226 Difference]: Without dead ends: 10414 [2022-03-01 16:01:40,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:40,005 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 375 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:40,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 2154 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:40,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10414 states. [2022-03-01 16:01:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10414 to 8600. [2022-03-01 16:01:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8599 states have (on average 3.421211768810327) internal successors, (29419), 8599 states have internal predecessors, (29419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 29419 transitions. [2022-03-01 16:01:40,183 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 29419 transitions. Word has length 182 [2022-03-01 16:01:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:40,184 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 29419 transitions. [2022-03-01 16:01:40,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 29419 transitions. [2022-03-01 16:01:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:40,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:40,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:40,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 16:01:40,200 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1207947659, now seen corresponding path program 38 times [2022-03-01 16:01:40,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:40,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365147396] [2022-03-01 16:01:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:40,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:40,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:40,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365147396] [2022-03-01 16:01:40,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365147396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:40,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:40,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:40,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820080818] [2022-03-01 16:01:40,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:40,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:40,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:40,813 INFO L87 Difference]: Start difference. First operand 8600 states and 29419 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:41,331 INFO L93 Difference]: Finished difference Result 11396 states and 39060 transitions. [2022-03-01 16:01:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:41,357 INFO L225 Difference]: With dead ends: 11396 [2022-03-01 16:01:41,357 INFO L226 Difference]: Without dead ends: 11246 [2022-03-01 16:01:41,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:41,358 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 482 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:41,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 2410 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2022-03-01 16:01:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 8584. [2022-03-01 16:01:41,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 3.4201328206920656) internal successors, (29355), 8583 states have internal predecessors, (29355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 29355 transitions. [2022-03-01 16:01:41,573 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 29355 transitions. Word has length 182 [2022-03-01 16:01:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:41,574 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 29355 transitions. [2022-03-01 16:01:41,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 29355 transitions. [2022-03-01 16:01:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:41,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:41,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:41,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 16:01:41,587 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:41,588 INFO L85 PathProgramCache]: Analyzing trace with hash -625719375, now seen corresponding path program 39 times [2022-03-01 16:01:41,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:41,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894258651] [2022-03-01 16:01:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:41,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:42,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:42,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894258651] [2022-03-01 16:01:42,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894258651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:42,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:42,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:42,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224642291] [2022-03-01 16:01:42,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:42,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:42,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:42,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:42,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:42,029 INFO L87 Difference]: Start difference. First operand 8584 states and 29355 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:42,437 INFO L93 Difference]: Finished difference Result 11545 states and 39541 transitions. [2022-03-01 16:01:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:42,465 INFO L225 Difference]: With dead ends: 11545 [2022-03-01 16:01:42,465 INFO L226 Difference]: Without dead ends: 11395 [2022-03-01 16:01:42,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:42,466 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 488 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:42,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2322 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:42,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2022-03-01 16:01:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 8568. [2022-03-01 16:01:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.4195167503209993) internal successors, (29295), 8567 states have internal predecessors, (29295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29295 transitions. [2022-03-01 16:01:42,630 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29295 transitions. Word has length 182 [2022-03-01 16:01:42,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:42,630 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29295 transitions. [2022-03-01 16:01:42,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29295 transitions. [2022-03-01 16:01:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:42,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:42,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:42,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 16:01:42,645 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 473406569, now seen corresponding path program 40 times [2022-03-01 16:01:42,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:42,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324075317] [2022-03-01 16:01:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:43,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:43,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324075317] [2022-03-01 16:01:43,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324075317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:43,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:43,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:43,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036078374] [2022-03-01 16:01:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:43,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:43,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:43,064 INFO L87 Difference]: Start difference. First operand 8568 states and 29295 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:43,521 INFO L93 Difference]: Finished difference Result 11322 states and 38784 transitions. [2022-03-01 16:01:43,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:43,522 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:43,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:43,553 INFO L225 Difference]: With dead ends: 11322 [2022-03-01 16:01:43,553 INFO L226 Difference]: Without dead ends: 11172 [2022-03-01 16:01:43,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:43,561 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 384 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:43,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2464 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:43,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-03-01 16:01:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8424. [2022-03-01 16:01:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 8423 states have (on average 3.4190905853021487) internal successors, (28799), 8423 states have internal predecessors, (28799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 28799 transitions. [2022-03-01 16:01:43,761 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 28799 transitions. Word has length 182 [2022-03-01 16:01:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:43,763 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 28799 transitions. [2022-03-01 16:01:43,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 28799 transitions. [2022-03-01 16:01:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:43,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:43,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:43,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 16:01:43,778 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1916046689, now seen corresponding path program 41 times [2022-03-01 16:01:43,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:43,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203300514] [2022-03-01 16:01:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:44,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:44,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:44,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203300514] [2022-03-01 16:01:44,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203300514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:44,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:44,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:44,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592313486] [2022-03-01 16:01:44,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:44,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:44,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:44,275 INFO L87 Difference]: Start difference. First operand 8424 states and 28799 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:44,625 INFO L93 Difference]: Finished difference Result 10282 states and 35153 transitions. [2022-03-01 16:01:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:44,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:44,650 INFO L225 Difference]: With dead ends: 10282 [2022-03-01 16:01:44,650 INFO L226 Difference]: Without dead ends: 10132 [2022-03-01 16:01:44,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:44,651 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 505 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:44,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1919 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:44,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-03-01 16:01:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 8528. [2022-03-01 16:01:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.420781048434385) internal successors, (29169), 8527 states have internal predecessors, (29169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29169 transitions. [2022-03-01 16:01:44,804 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29169 transitions. Word has length 182 [2022-03-01 16:01:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:44,804 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29169 transitions. [2022-03-01 16:01:44,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29169 transitions. [2022-03-01 16:01:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:44,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:44,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:44,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 16:01:44,818 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1501263459, now seen corresponding path program 42 times [2022-03-01 16:01:44,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:44,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536132959] [2022-03-01 16:01:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:44,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:45,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:45,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536132959] [2022-03-01 16:01:45,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536132959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:45,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:45,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:45,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556895282] [2022-03-01 16:01:45,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:45,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:45,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:45,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:45,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:45,270 INFO L87 Difference]: Start difference. First operand 8528 states and 29169 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:45,620 INFO L93 Difference]: Finished difference Result 10300 states and 35252 transitions. [2022-03-01 16:01:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:45,644 INFO L225 Difference]: With dead ends: 10300 [2022-03-01 16:01:45,644 INFO L226 Difference]: Without dead ends: 10114 [2022-03-01 16:01:45,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:45,644 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 451 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:45,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1869 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-03-01 16:01:45,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 8504. [2022-03-01 16:01:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:45,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-03-01 16:01:45,795 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-03-01 16:01:45,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:45,796 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-03-01 16:01:45,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-03-01 16:01:45,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:45,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:45,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:45,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 16:01:45,810 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1259282559, now seen corresponding path program 43 times [2022-03-01 16:01:45,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:45,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878038940] [2022-03-01 16:01:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:46,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:46,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878038940] [2022-03-01 16:01:46,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878038940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:46,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:46,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:46,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222555115] [2022-03-01 16:01:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:46,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:46,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:46,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:46,344 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:46,808 INFO L93 Difference]: Finished difference Result 10462 states and 35753 transitions. [2022-03-01 16:01:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:46,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:46,831 INFO L225 Difference]: With dead ends: 10462 [2022-03-01 16:01:46,831 INFO L226 Difference]: Without dead ends: 10312 [2022-03-01 16:01:46,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:46,833 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 331 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:46,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2247 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10312 states. [2022-03-01 16:01:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10312 to 8534. [2022-03-01 16:01:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 3.4240009375366225) internal successors, (29217), 8533 states have internal predecessors, (29217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:46,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 29217 transitions. [2022-03-01 16:01:46,989 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 29217 transitions. Word has length 182 [2022-03-01 16:01:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:46,995 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 29217 transitions. [2022-03-01 16:01:46,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 29217 transitions. [2022-03-01 16:01:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:47,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:47,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:47,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 16:01:47,010 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:47,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:47,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1658912573, now seen corresponding path program 44 times [2022-03-01 16:01:47,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:47,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402487569] [2022-03-01 16:01:47,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:47,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:47,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:47,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402487569] [2022-03-01 16:01:47,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402487569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:47,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:47,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:47,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594475256] [2022-03-01 16:01:47,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:47,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:47,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:47,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:47,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:47,562 INFO L87 Difference]: Start difference. First operand 8534 states and 29217 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:47,951 INFO L93 Difference]: Finished difference Result 11056 states and 37799 transitions. [2022-03-01 16:01:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:47,976 INFO L225 Difference]: With dead ends: 11056 [2022-03-01 16:01:47,976 INFO L226 Difference]: Without dead ends: 10906 [2022-03-01 16:01:47,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:47,976 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 370 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:47,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2135 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:47,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-03-01 16:01:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8504. [2022-03-01 16:01:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-03-01 16:01:48,132 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-03-01 16:01:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:48,133 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-03-01 16:01:48,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-03-01 16:01:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:48,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:48,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:48,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 16:01:48,147 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1008463871, now seen corresponding path program 45 times [2022-03-01 16:01:48,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:48,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265162236] [2022-03-01 16:01:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:48,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:48,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265162236] [2022-03-01 16:01:48,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265162236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:48,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:48,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:48,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483996154] [2022-03-01 16:01:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:48,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:48,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:48,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:48,578 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:48,902 INFO L93 Difference]: Finished difference Result 10480 states and 35939 transitions. [2022-03-01 16:01:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:48,926 INFO L225 Difference]: With dead ends: 10480 [2022-03-01 16:01:48,926 INFO L226 Difference]: Without dead ends: 10294 [2022-03-01 16:01:48,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:48,926 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 363 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:48,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1866 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:48,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-03-01 16:01:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 8520. [2022-03-01 16:01:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.4218805024063856) internal successors, (29151), 8519 states have internal predecessors, (29151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29151 transitions. [2022-03-01 16:01:49,070 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29151 transitions. Word has length 182 [2022-03-01 16:01:49,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:49,070 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29151 transitions. [2022-03-01 16:01:49,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:49,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29151 transitions. [2022-03-01 16:01:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:49,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:49,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:49,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 16:01:49,084 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:49,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:49,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1845206911, now seen corresponding path program 46 times [2022-03-01 16:01:49,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:49,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036114336] [2022-03-01 16:01:49,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:49,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:49,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:49,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036114336] [2022-03-01 16:01:49,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036114336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:49,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:49,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:49,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382256820] [2022-03-01 16:01:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:49,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:49,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:49,404 INFO L87 Difference]: Start difference. First operand 8520 states and 29151 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:49,703 INFO L93 Difference]: Finished difference Result 11056 states and 37874 transitions. [2022-03-01 16:01:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:49,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:49,728 INFO L225 Difference]: With dead ends: 11056 [2022-03-01 16:01:49,728 INFO L226 Difference]: Without dead ends: 10906 [2022-03-01 16:01:49,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:49,729 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 432 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:49,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2271 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-03-01 16:01:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8496. [2022-03-01 16:01:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-03-01 16:01:49,875 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-03-01 16:01:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:49,875 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-03-01 16:01:49,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-03-01 16:01:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:49,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:49,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:49,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 16:01:49,889 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1037356511, now seen corresponding path program 47 times [2022-03-01 16:01:49,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:49,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931090736] [2022-03-01 16:01:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:50,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:50,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931090736] [2022-03-01 16:01:50,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931090736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:50,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:50,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:50,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540199007] [2022-03-01 16:01:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:50,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:50,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:50,325 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:50,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:50,729 INFO L93 Difference]: Finished difference Result 10594 states and 36128 transitions. [2022-03-01 16:01:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:50,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:50,753 INFO L225 Difference]: With dead ends: 10594 [2022-03-01 16:01:50,753 INFO L226 Difference]: Without dead ends: 10444 [2022-03-01 16:01:50,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:50,754 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 470 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:50,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 1992 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-03-01 16:01:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8556. [2022-03-01 16:01:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 3.4224430157802455) internal successors, (29279), 8555 states have internal predecessors, (29279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 29279 transitions. [2022-03-01 16:01:50,911 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 29279 transitions. Word has length 182 [2022-03-01 16:01:50,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:50,911 INFO L470 AbstractCegarLoop]: Abstraction has 8556 states and 29279 transitions. [2022-03-01 16:01:50,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 29279 transitions. [2022-03-01 16:01:50,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:50,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:50,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:50,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 16:01:50,926 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:50,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1436986525, now seen corresponding path program 48 times [2022-03-01 16:01:50,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:50,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223610391] [2022-03-01 16:01:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:50,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:51,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:51,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223610391] [2022-03-01 16:01:51,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223610391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:51,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:51,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:51,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344161490] [2022-03-01 16:01:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:51,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:51,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:51,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:51,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:51,452 INFO L87 Difference]: Start difference. First operand 8556 states and 29279 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:51,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:51,827 INFO L93 Difference]: Finished difference Result 11278 states and 38444 transitions. [2022-03-01 16:01:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:51,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:51,853 INFO L225 Difference]: With dead ends: 11278 [2022-03-01 16:01:51,853 INFO L226 Difference]: Without dead ends: 11128 [2022-03-01 16:01:51,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:51,855 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 506 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:51,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1855 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-03-01 16:01:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 8526. [2022-03-01 16:01:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 3.4192375366568917) internal successors, (29149), 8525 states have internal predecessors, (29149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 29149 transitions. [2022-03-01 16:01:52,015 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 29149 transitions. Word has length 182 [2022-03-01 16:01:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:52,015 INFO L470 AbstractCegarLoop]: Abstraction has 8526 states and 29149 transitions. [2022-03-01 16:01:52,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 29149 transitions. [2022-03-01 16:01:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:52,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:52,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:52,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 16:01:52,032 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -210386171, now seen corresponding path program 49 times [2022-03-01 16:01:52,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:52,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633948905] [2022-03-01 16:01:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:52,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:52,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633948905] [2022-03-01 16:01:52,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633948905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:52,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:52,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:52,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641653951] [2022-03-01 16:01:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:52,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:52,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:52,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:52,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:52,486 INFO L87 Difference]: Start difference. First operand 8526 states and 29149 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:52,889 INFO L93 Difference]: Finished difference Result 11380 states and 38858 transitions. [2022-03-01 16:01:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:52,914 INFO L225 Difference]: With dead ends: 11380 [2022-03-01 16:01:52,915 INFO L226 Difference]: Without dead ends: 11230 [2022-03-01 16:01:52,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:52,915 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 421 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:52,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1940 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-01 16:01:53,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8496. [2022-03-01 16:01:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:53,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-03-01 16:01:53,064 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-03-01 16:01:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:53,064 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-03-01 16:01:53,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-03-01 16:01:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:53,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:53,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:53,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 16:01:53,078 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:53,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2028272291, now seen corresponding path program 50 times [2022-03-01 16:01:53,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:53,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989721240] [2022-03-01 16:01:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:53,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:53,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989721240] [2022-03-01 16:01:53,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989721240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:53,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:53,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:53,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984550742] [2022-03-01 16:01:53,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:53,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:53,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:53,429 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:53,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:53,841 INFO L93 Difference]: Finished difference Result 10504 states and 36053 transitions. [2022-03-01 16:01:53,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:53,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:53,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:53,866 INFO L225 Difference]: With dead ends: 10504 [2022-03-01 16:01:53,866 INFO L226 Difference]: Without dead ends: 10318 [2022-03-01 16:01:53,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:53,867 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 445 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:53,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 2295 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-03-01 16:01:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8528. [2022-03-01 16:01:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4212501465931746) internal successors, (29173), 8527 states have internal predecessors, (29173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29173 transitions. [2022-03-01 16:01:54,012 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29173 transitions. Word has length 182 [2022-03-01 16:01:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:54,013 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29173 transitions. [2022-03-01 16:01:54,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29173 transitions. [2022-03-01 16:01:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:54,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:54,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:54,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 16:01:54,026 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1191529251, now seen corresponding path program 51 times [2022-03-01 16:01:54,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:54,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748376583] [2022-03-01 16:01:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:54,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:54,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748376583] [2022-03-01 16:01:54,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748376583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:54,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:54,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:54,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658492711] [2022-03-01 16:01:54,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:54,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:54,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:54,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:54,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:54,522 INFO L87 Difference]: Start difference. First operand 8528 states and 29173 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:54,918 INFO L93 Difference]: Finished difference Result 11152 states and 38234 transitions. [2022-03-01 16:01:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:54,918 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:54,942 INFO L225 Difference]: With dead ends: 11152 [2022-03-01 16:01:54,942 INFO L226 Difference]: Without dead ends: 11002 [2022-03-01 16:01:54,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:54,942 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 357 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:54,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2051 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-03-01 16:01:55,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 8512. [2022-03-01 16:01:55,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 8511 states have (on average 3.420162143108918) internal successors, (29109), 8511 states have internal predecessors, (29109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 29109 transitions. [2022-03-01 16:01:55,097 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 29109 transitions. Word has length 182 [2022-03-01 16:01:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:55,098 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 29109 transitions. [2022-03-01 16:01:55,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 29109 transitions. [2022-03-01 16:01:55,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:55,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:55,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:55,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 16:01:55,112 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:55,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:55,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1269771011, now seen corresponding path program 52 times [2022-03-01 16:01:55,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:55,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409508939] [2022-03-01 16:01:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:55,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:55,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:55,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409508939] [2022-03-01 16:01:55,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409508939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:55,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:55,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:55,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159841971] [2022-03-01 16:01:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:55,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:55,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:55,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:55,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:55,582 INFO L87 Difference]: Start difference. First operand 8512 states and 29109 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:56,016 INFO L93 Difference]: Finished difference Result 11254 states and 38573 transitions. [2022-03-01 16:01:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:56,093 INFO L225 Difference]: With dead ends: 11254 [2022-03-01 16:01:56,093 INFO L226 Difference]: Without dead ends: 11104 [2022-03-01 16:01:56,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:56,100 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 538 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:56,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 2183 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-03-01 16:01:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 8488. [2022-03-01 16:01:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-03-01 16:01:56,238 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-03-01 16:01:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:56,238 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-03-01 16:01:56,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-03-01 16:01:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:56,253 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:56,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:56,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 16:01:56,253 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1833140033, now seen corresponding path program 53 times [2022-03-01 16:01:56,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:56,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892142600] [2022-03-01 16:01:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:56,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:56,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:56,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892142600] [2022-03-01 16:01:56,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892142600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:56,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:56,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:56,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890907081] [2022-03-01 16:01:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:56,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:56,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:56,703 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:57,132 INFO L93 Difference]: Finished difference Result 10586 states and 36098 transitions. [2022-03-01 16:01:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:57,157 INFO L225 Difference]: With dead ends: 10586 [2022-03-01 16:01:57,157 INFO L226 Difference]: Without dead ends: 10436 [2022-03-01 16:01:57,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:01:57,158 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 437 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:57,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2585 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-03-01 16:01:57,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 8788. [2022-03-01 16:01:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8787 states have (on average 3.4111756003186526) internal successors, (29974), 8787 states have internal predecessors, (29974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:57,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 29974 transitions. [2022-03-01 16:01:57,326 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 29974 transitions. Word has length 182 [2022-03-01 16:01:57,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:57,326 INFO L470 AbstractCegarLoop]: Abstraction has 8788 states and 29974 transitions. [2022-03-01 16:01:57,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 29974 transitions. [2022-03-01 16:01:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:57,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:57,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:57,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 16:01:57,342 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1433510019, now seen corresponding path program 54 times [2022-03-01 16:01:57,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:57,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035989044] [2022-03-01 16:01:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:57,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:57,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035989044] [2022-03-01 16:01:57,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035989044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:57,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:57,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:57,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715704480] [2022-03-01 16:01:57,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:57,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:57,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:57,788 INFO L87 Difference]: Start difference. First operand 8788 states and 29974 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:58,186 INFO L93 Difference]: Finished difference Result 11446 states and 39030 transitions. [2022-03-01 16:01:58,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:58,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:58,212 INFO L225 Difference]: With dead ends: 11446 [2022-03-01 16:01:58,212 INFO L226 Difference]: Without dead ends: 11296 [2022-03-01 16:01:58,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:58,212 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 545 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:58,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 1843 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:58,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-03-01 16:01:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 8758. [2022-03-01 16:01:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8758 states, 8757 states have (on average 3.408016443987667) internal successors, (29844), 8757 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 29844 transitions. [2022-03-01 16:01:58,362 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 29844 transitions. Word has length 182 [2022-03-01 16:01:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:58,362 INFO L470 AbstractCegarLoop]: Abstraction has 8758 states and 29844 transitions. [2022-03-01 16:01:58,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 29844 transitions. [2022-03-01 16:01:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:58,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:58,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:58,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 16:01:58,376 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1214084581, now seen corresponding path program 55 times [2022-03-01 16:01:58,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:58,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094041291] [2022-03-01 16:01:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:58,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:58,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094041291] [2022-03-01 16:01:58,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094041291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:58,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:58,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:58,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960141972] [2022-03-01 16:01:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:58,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:58,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:58,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:58,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:58,824 INFO L87 Difference]: Start difference. First operand 8758 states and 29844 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:59,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:59,240 INFO L93 Difference]: Finished difference Result 11581 states and 39520 transitions. [2022-03-01 16:01:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:59,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:01:59,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:59,266 INFO L225 Difference]: With dead ends: 11581 [2022-03-01 16:01:59,271 INFO L226 Difference]: Without dead ends: 11431 [2022-03-01 16:01:59,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:59,271 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 398 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:59,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 2173 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2022-03-01 16:01:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 8728. [2022-03-01 16:01:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8727 states have (on average 3.4082731752033917) internal successors, (29744), 8727 states have internal predecessors, (29744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 29744 transitions. [2022-03-01 16:01:59,435 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 29744 transitions. Word has length 182 [2022-03-01 16:01:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:59,435 INFO L470 AbstractCegarLoop]: Abstraction has 8728 states and 29744 transitions. [2022-03-01 16:01:59,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 29744 transitions. [2022-03-01 16:01:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:01:59,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:59,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:59,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 16:01:59,449 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash -501599589, now seen corresponding path program 56 times [2022-03-01 16:01:59,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:59,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303747439] [2022-03-01 16:01:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:01:59,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:59,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303747439] [2022-03-01 16:01:59,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303747439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:59,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:59,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:01:59,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582176298] [2022-03-01 16:01:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:59,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:01:59,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:59,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:01:59,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:01:59,945 INFO L87 Difference]: Start difference. First operand 8728 states and 29744 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:00,336 INFO L93 Difference]: Finished difference Result 11350 states and 38758 transitions. [2022-03-01 16:02:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:02:00,336 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:02:00,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:00,362 INFO L225 Difference]: With dead ends: 11350 [2022-03-01 16:02:00,362 INFO L226 Difference]: Without dead ends: 11200 [2022-03-01 16:02:00,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:02:00,363 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 537 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:00,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1771 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:02:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2022-03-01 16:02:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 8488. [2022-03-01 16:02:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:00,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-03-01 16:02:00,512 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-03-01 16:02:00,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:00,513 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-03-01 16:02:00,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:00,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-03-01 16:02:00,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:02:00,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:00,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:00,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 16:02:00,526 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:00,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1963569153, now seen corresponding path program 57 times [2022-03-01 16:02:00,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:00,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015494135] [2022-03-01 16:02:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:00,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:00,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:00,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015494135] [2022-03-01 16:02:00,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015494135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:00,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:02:00,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:02:00,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985558323] [2022-03-01 16:02:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:00,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:02:00,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:02:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:02:00,928 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:01,325 INFO L93 Difference]: Finished difference Result 10496 states and 36023 transitions. [2022-03-01 16:02:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:02:01,325 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:02:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:01,353 INFO L225 Difference]: With dead ends: 10496 [2022-03-01 16:02:01,354 INFO L226 Difference]: Without dead ends: 10310 [2022-03-01 16:02:01,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:02:01,354 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 448 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:01,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 2086 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:02:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2022-03-01 16:02:01,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 8568. [2022-03-01 16:02:01,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.422785105637913) internal successors, (29323), 8567 states have internal predecessors, (29323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29323 transitions. [2022-03-01 16:02:01,531 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29323 transitions. Word has length 182 [2022-03-01 16:02:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:01,531 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29323 transitions. [2022-03-01 16:02:01,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29323 transitions. [2022-03-01 16:02:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:02:01,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:01,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:01,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 16:02:01,546 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1126826113, now seen corresponding path program 58 times [2022-03-01 16:02:01,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:01,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654004598] [2022-03-01 16:02:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:02,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:02,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654004598] [2022-03-01 16:02:02,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654004598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:02,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:02:02,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:02:02,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872802190] [2022-03-01 16:02:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:02,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:02:02,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:02:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:02:02,059 INFO L87 Difference]: Start difference. First operand 8568 states and 29323 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:02,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:02,553 INFO L93 Difference]: Finished difference Result 11292 states and 38714 transitions. [2022-03-01 16:02:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:02:02,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:02:02,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:02,581 INFO L225 Difference]: With dead ends: 11292 [2022-03-01 16:02:02,581 INFO L226 Difference]: Without dead ends: 11142 [2022-03-01 16:02:02,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:02:02,583 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 349 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:02,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2480 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:02:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2022-03-01 16:02:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 8552. [2022-03-01 16:02:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4217050637352355) internal successors, (29259), 8551 states have internal predecessors, (29259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29259 transitions. [2022-03-01 16:02:02,743 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29259 transitions. Word has length 182 [2022-03-01 16:02:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:02,743 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29259 transitions. [2022-03-01 16:02:02,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29259 transitions. [2022-03-01 16:02:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:02:02,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:02,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:02,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 16:02:02,757 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:02,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:02,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1334474149, now seen corresponding path program 59 times [2022-03-01 16:02:02,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:02,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108872608] [2022-03-01 16:02:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:02,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:03,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:03,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108872608] [2022-03-01 16:02:03,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108872608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:03,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:02:03,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:02:03,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489750353] [2022-03-01 16:02:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:03,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:02:03,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:03,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:02:03,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:02:03,262 INFO L87 Difference]: Start difference. First operand 8552 states and 29259 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:03,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:03,768 INFO L93 Difference]: Finished difference Result 11441 states and 39195 transitions. [2022-03-01 16:02:03,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:02:03,768 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:02:03,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:03,793 INFO L225 Difference]: With dead ends: 11441 [2022-03-01 16:02:03,793 INFO L226 Difference]: Without dead ends: 11291 [2022-03-01 16:02:03,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:02:03,794 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 389 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:03,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2928 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:02:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2022-03-01 16:02:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 8536. [2022-03-01 16:02:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.421089630931459) internal successors, (29199), 8535 states have internal predecessors, (29199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29199 transitions. [2022-03-01 16:02:03,947 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29199 transitions. Word has length 182 [2022-03-01 16:02:03,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:03,947 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29199 transitions. [2022-03-01 16:02:03,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29199 transitions. [2022-03-01 16:02:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-01 16:02:03,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:03,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:03,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 16:02:03,961 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1861367203, now seen corresponding path program 60 times [2022-03-01 16:02:03,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:03,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048995930] [2022-03-01 16:02:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:03,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:04,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:04,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048995930] [2022-03-01 16:02:04,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048995930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:04,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:02:04,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 16:02:04,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687701436] [2022-03-01 16:02:04,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:04,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 16:02:04,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:04,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 16:02:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:02:04,346 INFO L87 Difference]: Start difference. First operand 8536 states and 29199 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:04,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:04,712 INFO L93 Difference]: Finished difference Result 11218 states and 38438 transitions. [2022-03-01 16:02:04,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:02:04,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-03-01 16:02:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:04,737 INFO L225 Difference]: With dead ends: 11218 [2022-03-01 16:02:04,738 INFO L226 Difference]: Without dead ends: 11068 [2022-03-01 16:02:04,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:02:04,738 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 512 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:04,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2129 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:02:04,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-03-01 16:02:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 8360. [2022-03-01 16:02:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 8359 states have (on average 3.4184711089843285) internal successors, (28575), 8359 states have internal predecessors, (28575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 28575 transitions. [2022-03-01 16:02:04,891 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 28575 transitions. Word has length 182 [2022-03-01 16:02:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:04,891 INFO L470 AbstractCegarLoop]: Abstraction has 8360 states and 28575 transitions. [2022-03-01 16:02:04,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 28575 transitions. [2022-03-01 16:02:04,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-01 16:02:04,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:04,905 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:04,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 16:02:04,906 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:04,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1224210520, now seen corresponding path program 1 times [2022-03-01 16:02:04,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:04,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039875533] [2022-03-01 16:02:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:04,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:04,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039875533] [2022-03-01 16:02:04,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039875533] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:04,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918358195] [2022-03-01 16:02:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:04,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:04,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:04,962 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) [2022-03-01 16:02:04,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 16:02:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:05,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:02:05,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:02:05,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:02:05,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918358195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:05,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:02:05,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-03-01 16:02:05,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628118214] [2022-03-01 16:02:05,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:05,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 16:02:05,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 16:02:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:02:05,469 INFO L87 Difference]: Start difference. First operand 8360 states and 28575 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 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) [2022-03-01 16:02:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:05,563 INFO L93 Difference]: Finished difference Result 16640 states and 58245 transitions. [2022-03-01 16:02:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 16:02:05,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 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 187 [2022-03-01 16:02:05,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:05,693 INFO L225 Difference]: With dead ends: 16640 [2022-03-01 16:02:05,693 INFO L226 Difference]: Without dead ends: 15860 [2022-03-01 16:02:05,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:02:05,693 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 173 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:05,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 397 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:02:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2022-03-01 16:02:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 13004. [2022-03-01 16:02:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 3.5440283011612705) internal successors, (46083), 13003 states have internal predecessors, (46083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 46083 transitions. [2022-03-01 16:02:05,943 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 46083 transitions. Word has length 187 [2022-03-01 16:02:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:05,943 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 46083 transitions. [2022-03-01 16:02:05,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 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) [2022-03-01 16:02:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 46083 transitions. [2022-03-01 16:02:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-01 16:02:05,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:05,969 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:05,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-01 16:02:06,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:06,182 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:06,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1066332014, now seen corresponding path program 1 times [2022-03-01 16:02:06,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:06,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826409504] [2022-03-01 16:02:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:06,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:06,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:06,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:06,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826409504] [2022-03-01 16:02:06,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826409504] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:06,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436429919] [2022-03-01 16:02:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:06,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:06,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:06,259 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) [2022-03-01 16:02:06,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 16:02:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:06,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-01 16:02:06,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:06,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:07,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436429919] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:07,057 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:07,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-01 16:02:07,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011950865] [2022-03-01 16:02:07,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:07,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 16:02:07,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:07,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 16:02:07,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-01 16:02:07,058 INFO L87 Difference]: Start difference. First operand 13004 states and 46083 transitions. Second operand has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:07,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:07,328 INFO L93 Difference]: Finished difference Result 21336 states and 73984 transitions. [2022-03-01 16:02:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:02:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2022-03-01 16:02:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:07,373 INFO L225 Difference]: With dead ends: 21336 [2022-03-01 16:02:07,373 INFO L226 Difference]: Without dead ends: 17904 [2022-03-01 16:02:07,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:02:07,374 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 852 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:07,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1449 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:02:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17904 states. [2022-03-01 16:02:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17904 to 16252. [2022-03-01 16:02:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 16251 states have (on average 3.50772260168605) internal successors, (57004), 16251 states have internal predecessors, (57004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 57004 transitions. [2022-03-01 16:02:07,679 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 57004 transitions. Word has length 188 [2022-03-01 16:02:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:07,680 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 57004 transitions. [2022-03-01 16:02:07,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 57004 transitions. [2022-03-01 16:02:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-01 16:02:07,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:07,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:07,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:07,922 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,SelfDestructingSolverStorable64 [2022-03-01 16:02:07,923 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:07,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash -44480918, now seen corresponding path program 1 times [2022-03-01 16:02:07,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:07,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287401339] [2022-03-01 16:02:07,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:07,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:07,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:07,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:07,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287401339] [2022-03-01 16:02:07,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287401339] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:07,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346602555] [2022-03-01 16:02:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:07,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:07,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:08,000 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) [2022-03-01 16:02:08,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 16:02:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:08,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-01 16:02:08,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:08,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:08,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346602555] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:08,853 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:08,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-01 16:02:08,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686749570] [2022-03-01 16:02:08,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:08,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 16:02:08,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 16:02:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-01 16:02:08,854 INFO L87 Difference]: Start difference. First operand 16252 states and 57004 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:09,140 INFO L93 Difference]: Finished difference Result 30484 states and 105398 transitions. [2022-03-01 16:02:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:02:09,140 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2022-03-01 16:02:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:09,195 INFO L225 Difference]: With dead ends: 30484 [2022-03-01 16:02:09,195 INFO L226 Difference]: Without dead ends: 21539 [2022-03-01 16:02:09,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:02:09,197 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 643 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:09,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1696 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:02:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2022-03-01 16:02:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 16503. [2022-03-01 16:02:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16502 states have (on average 3.4929705490243608) internal successors, (57641), 16502 states have internal predecessors, (57641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 57641 transitions. [2022-03-01 16:02:09,553 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 57641 transitions. Word has length 188 [2022-03-01 16:02:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:09,554 INFO L470 AbstractCegarLoop]: Abstraction has 16503 states and 57641 transitions. [2022-03-01 16:02:09,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 57641 transitions. [2022-03-01 16:02:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:09,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:09,588 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:09,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:09,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:09,805 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:09,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:09,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1650696287, now seen corresponding path program 2 times [2022-03-01 16:02:09,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:09,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004200922] [2022-03-01 16:02:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:09,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:02:09,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:09,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004200922] [2022-03-01 16:02:09,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004200922] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:09,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988451930] [2022-03-01 16:02:09,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:02:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:09,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:09,996 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) [2022-03-01 16:02:10,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 16:02:10,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:02:10,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:10,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 16:02:10,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:02:10,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:02:11,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988451930] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:11,472 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:11,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-03-01 16:02:11,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895286712] [2022-03-01 16:02:11,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:11,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-01 16:02:11,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-01 16:02:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:02:11,473 INFO L87 Difference]: Start difference. First operand 16503 states and 57641 transitions. Second operand has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:11,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:11,873 INFO L93 Difference]: Finished difference Result 18386 states and 63392 transitions. [2022-03-01 16:02:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 16:02:11,873 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:02:11,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:11,913 INFO L225 Difference]: With dead ends: 18386 [2022-03-01 16:02:11,913 INFO L226 Difference]: Without dead ends: 16264 [2022-03-01 16:02:11,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=387, Invalid=1173, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 16:02:11,914 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1101 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:11,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 2077 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:02:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2022-03-01 16:02:12,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 16259. [2022-03-01 16:02:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.506642883503506) internal successors, (57011), 16258 states have internal predecessors, (57011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 57011 transitions. [2022-03-01 16:02:12,217 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 57011 transitions. Word has length 195 [2022-03-01 16:02:12,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:12,217 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 57011 transitions. [2022-03-01 16:02:12,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 57011 transitions. [2022-03-01 16:02:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:12,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:12,247 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:12,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:12,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:12,464 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1930069325, now seen corresponding path program 2 times [2022-03-01 16:02:12,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:12,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243685929] [2022-03-01 16:02:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:12,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:12,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243685929] [2022-03-01 16:02:12,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243685929] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:12,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884003180] [2022-03-01 16:02:12,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:02:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:12,795 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) [2022-03-01 16:02:12,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 16:02:12,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:02:12,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:12,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-01 16:02:12,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:13,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 16:02:13,902 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:02:13,903 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 21 treesize of output 10 [2022-03-01 16:02:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:13,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:14,195 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 16:02:14,195 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 25 treesize of output 16 [2022-03-01 16:02:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:15,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884003180] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:15,019 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:15,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 14] total 37 [2022-03-01 16:02:15,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167197387] [2022-03-01 16:02:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:15,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-01 16:02:15,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-01 16:02:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 16:02:15,020 INFO L87 Difference]: Start difference. First operand 16259 states and 57011 transitions. Second operand has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:16,471 INFO L93 Difference]: Finished difference Result 85276 states and 297897 transitions. [2022-03-01 16:02:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 16:02:16,471 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:02:16,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:16,673 INFO L225 Difference]: With dead ends: 85276 [2022-03-01 16:02:16,674 INFO L226 Difference]: Without dead ends: 63134 [2022-03-01 16:02:16,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 369 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=951, Invalid=3339, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 16:02:16,675 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1512 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:16,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4189 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 16:02:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2022-03-01 16:02:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 33761. [2022-03-01 16:02:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 3.618601895734597) internal successors, (122164), 33760 states have internal predecessors, (122164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 122164 transitions. [2022-03-01 16:02:18,030 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 122164 transitions. Word has length 195 [2022-03-01 16:02:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:18,031 INFO L470 AbstractCegarLoop]: Abstraction has 33761 states and 122164 transitions. [2022-03-01 16:02:18,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 122164 transitions. [2022-03-01 16:02:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:18,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:18,097 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:18,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:18,314 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,SelfDestructingSolverStorable67 [2022-03-01 16:02:18,315 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 799326719, now seen corresponding path program 3 times [2022-03-01 16:02:18,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:18,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545976319] [2022-03-01 16:02:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:18,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:18,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:18,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545976319] [2022-03-01 16:02:18,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545976319] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:18,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891133520] [2022-03-01 16:02:18,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:02:18,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:18,863 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) [2022-03-01 16:02:18,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 16:02:19,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 16:02:19,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:19,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-01 16:02:19,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:19,467 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-01 16:02:19,467 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 23 treesize of output 10 [2022-03-01 16:02:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:02:19,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:19,612 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 16:02:19,613 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 25 treesize of output 16 [2022-03-01 16:02:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:02:19,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891133520] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:19,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:19,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 5, 5] total 22 [2022-03-01 16:02:19,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897641155] [2022-03-01 16:02:19,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:19,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-01 16:02:19,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-01 16:02:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-03-01 16:02:19,947 INFO L87 Difference]: Start difference. First operand 33761 states and 122164 transitions. Second operand has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:20,865 INFO L93 Difference]: Finished difference Result 43176 states and 153626 transitions. [2022-03-01 16:02:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 16:02:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:02:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:20,991 INFO L225 Difference]: With dead ends: 43176 [2022-03-01 16:02:20,991 INFO L226 Difference]: Without dead ends: 39382 [2022-03-01 16:02:20,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=298, Invalid=1424, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 16:02:20,991 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 463 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:20,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2853 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 693 Invalid, 0 Unknown, 62 Unchecked, 0.3s Time] [2022-03-01 16:02:21,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39382 states. [2022-03-01 16:02:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39382 to 34982. [2022-03-01 16:02:21,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34982 states, 34981 states have (on average 3.6216803407564107) internal successors, (126690), 34981 states have internal predecessors, (126690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:21,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34982 states to 34982 states and 126690 transitions. [2022-03-01 16:02:21,947 INFO L78 Accepts]: Start accepts. Automaton has 34982 states and 126690 transitions. Word has length 195 [2022-03-01 16:02:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:21,947 INFO L470 AbstractCegarLoop]: Abstraction has 34982 states and 126690 transitions. [2022-03-01 16:02:21,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:21,947 INFO L276 IsEmpty]: Start isEmpty. Operand 34982 states and 126690 transitions. [2022-03-01 16:02:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:22,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:22,019 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:22,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:22,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:22,239 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:22,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1879711941, now seen corresponding path program 4 times [2022-03-01 16:02:22,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:22,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041064363] [2022-03-01 16:02:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:22,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:22,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:22,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:22,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041064363] [2022-03-01 16:02:22,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041064363] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:22,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031209123] [2022-03-01 16:02:22,947 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:02:22,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:22,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:22,949 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) [2022-03-01 16:02:22,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 16:02:23,112 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:02:23,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:23,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-01 16:02:23,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:23,148 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 [2022-03-01 16:02:23,372 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:02:23,372 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 [2022-03-01 16:02:24,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:02:24,285 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 23 treesize of output 7 [2022-03-01 16:02:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:24,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:24,388 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1548 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1548) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:02:24,558 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:02:24,559 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 45 treesize of output 45 [2022-03-01 16:02:24,562 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:02:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:26,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031209123] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:26,236 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:26,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-03-01 16:02:26,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327727329] [2022-03-01 16:02:26,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:26,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-01 16:02:26,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:26,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-01 16:02:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2914, Unknown=1, NotChecked=110, Total=3306 [2022-03-01 16:02:26,238 INFO L87 Difference]: Start difference. First operand 34982 states and 126690 transitions. Second operand has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:32,873 INFO L93 Difference]: Finished difference Result 139174 states and 499828 transitions. [2022-03-01 16:02:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-01 16:02:32,873 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:02:32,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:33,570 INFO L225 Difference]: With dead ends: 139174 [2022-03-01 16:02:33,570 INFO L226 Difference]: Without dead ends: 125061 [2022-03-01 16:02:33,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 357 SyntacticMatches, 12 SemanticMatches, 126 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4735 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2166, Invalid=13827, Unknown=13, NotChecked=250, Total=16256 [2022-03-01 16:02:33,583 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 4015 mSDsluCounter, 9230 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1213 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:33,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4015 Valid, 8732 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2679 Invalid, 0 Unknown, 1213 Unchecked, 1.1s Time] [2022-03-01 16:02:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125061 states. [2022-03-01 16:02:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125061 to 60557. [2022-03-01 16:02:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60557 states, 60556 states have (on average 3.708748926613383) internal successors, (224587), 60556 states have internal predecessors, (224587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60557 states to 60557 states and 224587 transitions. [2022-03-01 16:02:36,250 INFO L78 Accepts]: Start accepts. Automaton has 60557 states and 224587 transitions. Word has length 195 [2022-03-01 16:02:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:36,251 INFO L470 AbstractCegarLoop]: Abstraction has 60557 states and 224587 transitions. [2022-03-01 16:02:36,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 60557 states and 224587 transitions. [2022-03-01 16:02:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:36,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:36,403 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:36,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:36,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:36,621 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash -397770113, now seen corresponding path program 5 times [2022-03-01 16:02:36,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:36,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368847850] [2022-03-01 16:02:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:36,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:38,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:38,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368847850] [2022-03-01 16:02:38,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368847850] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:38,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434855898] [2022-03-01 16:02:38,095 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:02:38,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:38,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:38,096 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) [2022-03-01 16:02:38,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 16:02:38,242 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 16:02:38,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:38,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-01 16:02:38,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:38,284 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 [2022-03-01 16:02:38,314 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-01 16:02:38,314 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-01 16:02:38,435 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:02:38,436 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 [2022-03-01 16:02:38,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:02:38,941 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-01 16:02:38,941 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 23 treesize of output 10 [2022-03-01 16:02:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:02:39,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:02:39,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434855898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:39,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:02:39,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [29] total 39 [2022-03-01 16:02:39,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840828507] [2022-03-01 16:02:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:39,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-01 16:02:39,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:39,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-01 16:02:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1376, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 16:02:39,008 INFO L87 Difference]: Start difference. First operand 60557 states and 224587 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:39,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:39,818 INFO L93 Difference]: Finished difference Result 80221 states and 293711 transitions. [2022-03-01 16:02:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:02:39,819 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:02:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:40,130 INFO L225 Difference]: With dead ends: 80221 [2022-03-01 16:02:40,131 INFO L226 Difference]: Without dead ends: 78359 [2022-03-01 16:02:40,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=204, Invalid=2346, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 16:02:40,131 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 431 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:40,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1721 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 68 Unchecked, 0.1s Time] [2022-03-01 16:02:40,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78359 states. [2022-03-01 16:02:41,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78359 to 63413. [2022-03-01 16:02:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63413 states, 63412 states have (on average 3.7079259446161608) internal successors, (235127), 63412 states have internal predecessors, (235127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63413 states to 63413 states and 235127 transitions. [2022-03-01 16:02:42,152 INFO L78 Accepts]: Start accepts. Automaton has 63413 states and 235127 transitions. Word has length 195 [2022-03-01 16:02:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:42,153 INFO L470 AbstractCegarLoop]: Abstraction has 63413 states and 235127 transitions. [2022-03-01 16:02:42,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 63413 states and 235127 transitions. [2022-03-01 16:02:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:42,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:42,529 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:42,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:42,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:42,732 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1963341365, now seen corresponding path program 6 times [2022-03-01 16:02:42,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:42,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240090085] [2022-03-01 16:02:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:42,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:43,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:43,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240090085] [2022-03-01 16:02:43,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240090085] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:43,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290615746] [2022-03-01 16:02:43,295 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:02:43,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:43,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:43,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:43,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 16:02:43,479 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-01 16:02:43,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:43,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-01 16:02:43,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:44,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:02:44,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:02:44,726 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-01 16:02:44,726 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 23 treesize of output 10 [2022-03-01 16:02:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:44,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:45,075 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:02:45,075 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 45 treesize of output 45 [2022-03-01 16:02:45,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:02:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:46,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290615746] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:46,795 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:46,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-03-01 16:02:46,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329120755] [2022-03-01 16:02:46,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:46,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-01 16:02:46,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:46,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-01 16:02:46,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3069, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 16:02:46,796 INFO L87 Difference]: Start difference. First operand 63413 states and 235127 transitions. Second operand has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 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) [2022-03-01 16:02:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:53,170 INFO L93 Difference]: Finished difference Result 131492 states and 482053 transitions. [2022-03-01 16:02:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-01 16:02:53,171 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 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 195 [2022-03-01 16:02:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:54,034 INFO L225 Difference]: With dead ends: 131492 [2022-03-01 16:02:54,035 INFO L226 Difference]: Without dead ends: 130008 [2022-03-01 16:02:54,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 365 SyntacticMatches, 15 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4008 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1725, Invalid=12795, Unknown=0, NotChecked=0, Total=14520 [2022-03-01 16:02:54,036 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 3583 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 10626 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:54,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 10626 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3184 Invalid, 0 Unknown, 182 Unchecked, 1.2s Time] [2022-03-01 16:02:54,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130008 states. [2022-03-01 16:02:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130008 to 63667. [2022-03-01 16:02:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63667 states, 63666 states have (on average 3.7056199541356456) internal successors, (235922), 63666 states have internal predecessors, (235922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:02:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63667 states to 63667 states and 235922 transitions. [2022-03-01 16:02:56,533 INFO L78 Accepts]: Start accepts. Automaton has 63667 states and 235922 transitions. Word has length 195 [2022-03-01 16:02:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:56,534 INFO L470 AbstractCegarLoop]: Abstraction has 63667 states and 235922 transitions. [2022-03-01 16:02:56,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 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) [2022-03-01 16:02:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 63667 states and 235922 transitions. [2022-03-01 16:02:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-01 16:02:56,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:56,667 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:56,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-01 16:02:56,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:56,887 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:56,887 INFO L85 PathProgramCache]: Analyzing trace with hash -882956143, now seen corresponding path program 7 times [2022-03-01 16:02:56,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:56,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894558439] [2022-03-01 16:02:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:58,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:58,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:58,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894558439] [2022-03-01 16:02:58,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894558439] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:58,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041869557] [2022-03-01 16:02:58,045 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 16:02:58,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:58,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:58,047 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:58,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-01 16:02:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:58,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 49 conjunts are in the unsatisfiable core [2022-03-01 16:02:58,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:58,239 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 [2022-03-01 16:02:58,270 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-01 16:02:58,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-03-01 16:02:58,663 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:02:58,663 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 15 treesize of output 15 [2022-03-01 16:02:59,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-01 16:02:59,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:02:59,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:02:59,831 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 23 treesize of output 7 [2022-03-01 16:02:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:02:59,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:59,973 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1688 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1688) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:03:00,186 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:03:00,186 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 85 treesize of output 85 [2022-03-01 16:03:00,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 64 treesize of output 58 [2022-03-01 16:03:00,192 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 58 treesize of output 46 [2022-03-01 16:03:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:03:02,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041869557] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:03:02,595 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:03:02,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 68 [2022-03-01 16:03:02,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367753269] [2022-03-01 16:03:02,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:03:02,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-01 16:03:02,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:03:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-01 16:03:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4099, Unknown=2, NotChecked=130, Total=4556 [2022-03-01 16:03:02,596 INFO L87 Difference]: Start difference. First operand 63667 states and 235922 transitions. Second operand has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:03:15,920 INFO L93 Difference]: Finished difference Result 231914 states and 848599 transitions. [2022-03-01 16:03:15,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-01 16:03:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-03-01 16:03:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:03:17,283 INFO L225 Difference]: With dead ends: 231914 [2022-03-01 16:03:17,284 INFO L226 Difference]: Without dead ends: 213213 [2022-03-01 16:03:17,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 357 SyntacticMatches, 24 SemanticMatches, 155 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8004 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2946, Invalid=21215, Unknown=23, NotChecked=308, Total=24492 [2022-03-01 16:03:17,285 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 6034 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 4987 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6034 SdHoareTripleChecker+Valid, 13306 SdHoareTripleChecker+Invalid, 8052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2692 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:03:17,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6034 Valid, 13306 Invalid, 8052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4987 Invalid, 0 Unknown, 2692 Unchecked, 2.3s Time] [2022-03-01 16:03:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213213 states. [2022-03-01 16:03:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213213 to 59461. [2022-03-01 16:03:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59461 states, 59460 states have (on average 3.6814328960645812) internal successors, (218898), 59460 states have internal predecessors, (218898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59461 states to 59461 states and 218898 transitions. [2022-03-01 16:03:20,788 INFO L78 Accepts]: Start accepts. Automaton has 59461 states and 218898 transitions. Word has length 195 [2022-03-01 16:03:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:03:20,788 INFO L470 AbstractCegarLoop]: Abstraction has 59461 states and 218898 transitions. [2022-03-01 16:03:20,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 59461 states and 218898 transitions. [2022-03-01 16:03:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:03:21,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:03:21,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:03:21,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-01 16:03:21,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2022-03-01 16:03:21,596 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:03:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:03:21,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1483032586, now seen corresponding path program 3 times [2022-03-01 16:03:21,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:03:21,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658427340] [2022-03-01 16:03:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:03:21,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:03:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:03:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-01 16:03:21,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:03:21,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658427340] [2022-03-01 16:03:21,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658427340] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:03:21,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655913594] [2022-03-01 16:03:21,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:03:21,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:03:21,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:03:21,656 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:03:21,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-01 16:03:21,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 16:03:21,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:03:21,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:03:21,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:03:22,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-01 16:03:22,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:03:22,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655913594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:03:22,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:03:22,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-03-01 16:03:22,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322013686] [2022-03-01 16:03:22,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:03:22,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 16:03:22,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:03:22,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 16:03:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:03:22,049 INFO L87 Difference]: Start difference. First operand 59461 states and 218898 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:22,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:03:22,990 INFO L93 Difference]: Finished difference Result 88471 states and 323334 transitions. [2022-03-01 16:03:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 16:03:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:03:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:03:23,523 INFO L225 Difference]: With dead ends: 88471 [2022-03-01 16:03:23,523 INFO L226 Difference]: Without dead ends: 86165 [2022-03-01 16:03:23,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:03:23,524 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 189 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:03:23,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 387 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:03:23,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86165 states. [2022-03-01 16:03:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86165 to 75916. [2022-03-01 16:03:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 75915 states have (on average 3.6963841138115) internal successors, (280611), 75915 states have internal predecessors, (280611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 280611 transitions. [2022-03-01 16:03:26,097 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 280611 transitions. Word has length 202 [2022-03-01 16:03:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:03:26,098 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 280611 transitions. [2022-03-01 16:03:26,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:26,098 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 280611 transitions. [2022-03-01 16:03:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:03:26,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:03:26,302 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:03:26,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-01 16:03:26,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-03-01 16:03:26,516 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:03:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:03:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1449450942, now seen corresponding path program 8 times [2022-03-01 16:03:26,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:03:26,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116152634] [2022-03-01 16:03:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:03:26,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:03:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:03:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:03:28,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:03:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116152634] [2022-03-01 16:03:28,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116152634] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:03:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987910357] [2022-03-01 16:03:28,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:03:28,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:03:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:03:28,311 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:03:28,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-01 16:03:28,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:03:28,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:03:28,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-01 16:03:28,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:03:29,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:03:29,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:03:29,976 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 25 treesize of output 7 [2022-03-01 16:03:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:03:30,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:03:30,352 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:03:30,352 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 45 treesize of output 45 [2022-03-01 16:03:30,355 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:03:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:03:32,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987910357] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:03:32,180 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:03:32,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 67 [2022-03-01 16:03:32,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415540973] [2022-03-01 16:03:32,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:03:32,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-01 16:03:32,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:03:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-01 16:03:32,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4102, Unknown=2, NotChecked=0, Total=4422 [2022-03-01 16:03:32,181 INFO L87 Difference]: Start difference. First operand 75916 states and 280611 transitions. Second operand has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:03:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:03:51,020 INFO L93 Difference]: Finished difference Result 400204 states and 1460550 transitions. [2022-03-01 16:03:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-01 16:03:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:03:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:03:53,440 INFO L225 Difference]: With dead ends: 400204 [2022-03-01 16:03:53,440 INFO L226 Difference]: Without dead ends: 390794 [2022-03-01 16:03:53,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 367 SyntacticMatches, 8 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11722 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=4506, Invalid=31024, Unknown=2, NotChecked=0, Total=35532 [2022-03-01 16:03:53,442 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 6425 mSDsluCounter, 17849 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 7170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 502 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:03:53,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6425 Valid, 16690 Invalid, 7170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 6183 Invalid, 0 Unknown, 502 Unchecked, 3.1s Time] [2022-03-01 16:03:54,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390794 states. [2022-03-01 16:04:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390794 to 147094. [2022-03-01 16:04:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147094 states, 147093 states have (on average 3.7853330885902117) internal successors, (556796), 147093 states have internal predecessors, (556796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:04:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147094 states to 147094 states and 556796 transitions. [2022-03-01 16:04:03,215 INFO L78 Accepts]: Start accepts. Automaton has 147094 states and 556796 transitions. Word has length 202 [2022-03-01 16:04:03,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:04:03,215 INFO L470 AbstractCegarLoop]: Abstraction has 147094 states and 556796 transitions. [2022-03-01 16:04:03,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:04:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 147094 states and 556796 transitions. [2022-03-01 16:04:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:04:03,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:04:03,765 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:04:03,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-03-01 16:04:03,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:04:03,980 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:04:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:04:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1771842876, now seen corresponding path program 9 times [2022-03-01 16:04:03,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:04:03,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782567450] [2022-03-01 16:04:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:04:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:04:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:04:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:04:05,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:04:05,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782567450] [2022-03-01 16:04:05,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782567450] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:04:05,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923591521] [2022-03-01 16:04:05,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:04:05,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:04:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:04:05,506 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:04:05,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-01 16:04:05,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 16:04:05,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:04:05,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-01 16:04:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:04:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:04:06,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:04:06,429 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 23 treesize of output 7 [2022-03-01 16:04:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:04:06,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:04:06,611 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1834 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1834) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:04:06,646 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:04:06,647 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 45 treesize of output 45 [2022-03-01 16:04:06,649 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:04:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-03-01 16:04:07,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923591521] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:04:07,307 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:04:07,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 49 [2022-03-01 16:04:07,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764475577] [2022-03-01 16:04:07,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:04:07,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-01 16:04:07,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:04:07,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-01 16:04:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2123, Unknown=1, NotChecked=92, Total=2352 [2022-03-01 16:04:07,308 INFO L87 Difference]: Start difference. First operand 147094 states and 556796 transitions. Second operand has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:04:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:04:13,944 INFO L93 Difference]: Finished difference Result 193050 states and 721872 transitions. [2022-03-01 16:04:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-01 16:04:13,944 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:04:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:04:15,175 INFO L225 Difference]: With dead ends: 193050 [2022-03-01 16:04:15,175 INFO L226 Difference]: Without dead ends: 186906 [2022-03-01 16:04:15,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1667, Invalid=10768, Unknown=1, NotChecked=220, Total=12656 [2022-03-01 16:04:15,176 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 2170 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 5445 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:04:15,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 5445 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1909 Invalid, 0 Unknown, 366 Unchecked, 0.9s Time] [2022-03-01 16:04:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186906 states. [2022-03-01 16:04:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186906 to 143636. [2022-03-01 16:04:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143636 states, 143635 states have (on average 3.7910537125352457) internal successors, (544528), 143635 states have internal predecessors, (544528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:04:20,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143636 states to 143636 states and 544528 transitions. [2022-03-01 16:04:20,957 INFO L78 Accepts]: Start accepts. Automaton has 143636 states and 544528 transitions. Word has length 202 [2022-03-01 16:04:20,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:04:20,958 INFO L470 AbstractCegarLoop]: Abstraction has 143636 states and 544528 transitions. [2022-03-01 16:04:20,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:04:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 143636 states and 544528 transitions. [2022-03-01 16:04:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:04:21,714 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:04:21,714 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:04:21,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-01 16:04:21,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2022-03-01 16:04:21,918 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:04:21,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:04:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 82848270, now seen corresponding path program 10 times [2022-03-01 16:04:21,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:04:21,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093095649] [2022-03-01 16:04:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:04:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:04:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:04:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:04:25,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:04:25,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093095649] [2022-03-01 16:04:25,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093095649] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:04:25,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740015297] [2022-03-01 16:04:25,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:04:25,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:04:25,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:04:25,574 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:04:25,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-01 16:04:25,753 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:04:25,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:04:25,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-01 16:04:25,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:04:27,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:04:27,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:04:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:04:27,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:04:27,679 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 23 treesize of output 7 [2022-03-01 16:04:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:04:27,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:04:28,250 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:04:28,250 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 167 treesize of output 159 [2022-03-01 16:04:28,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 138 treesize of output 126 [2022-03-01 16:04:28,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 126 treesize of output 102 [2022-03-01 16:04:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:04:30,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740015297] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:04:30,818 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:04:30,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 25, 25] total 87 [2022-03-01 16:04:30,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808292414] [2022-03-01 16:04:30,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:04:30,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-01 16:04:30,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:04:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-01 16:04:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=7063, Unknown=34, NotChecked=0, Total=7482 [2022-03-01 16:04:30,820 INFO L87 Difference]: Start difference. First operand 143636 states and 544528 transitions. Second operand has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:05:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:05:19,692 INFO L93 Difference]: Finished difference Result 727448 states and 2739609 transitions. [2022-03-01 16:05:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-03-01 16:05:19,692 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:05:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:05:25,020 INFO L225 Difference]: With dead ends: 727448 [2022-03-01 16:05:25,020 INFO L226 Difference]: Without dead ends: 704930 [2022-03-01 16:05:25,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 365 SyntacticMatches, 9 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26430 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=7838, Invalid=74039, Unknown=205, NotChecked=0, Total=82082 [2022-03-01 16:05:25,024 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 10154 mSDsluCounter, 43309 mSDsCounter, 0 mSdLazyCounter, 13149 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10154 SdHoareTripleChecker+Valid, 40023 SdHoareTripleChecker+Invalid, 22233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 13149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8392 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:05:25,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10154 Valid, 40023 Invalid, 22233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [692 Valid, 13149 Invalid, 0 Unknown, 8392 Unchecked, 7.6s Time] [2022-03-01 16:05:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704930 states. [2022-03-01 16:05:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704930 to 242655. [2022-03-01 16:05:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242655 states, 242654 states have (on average 3.8465139663883554) internal successors, (933372), 242654 states have internal predecessors, (933372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:05:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242655 states to 242655 states and 933372 transitions. [2022-03-01 16:05:47,124 INFO L78 Accepts]: Start accepts. Automaton has 242655 states and 933372 transitions. Word has length 202 [2022-03-01 16:05:47,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:05:47,124 INFO L470 AbstractCegarLoop]: Abstraction has 242655 states and 933372 transitions. [2022-03-01 16:05:47,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:05:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 242655 states and 933372 transitions. [2022-03-01 16:05:48,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:05:48,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:05:48,051 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:05:48,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-01 16:05:48,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:05:48,268 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:05:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:05:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash -327673536, now seen corresponding path program 11 times [2022-03-01 16:05:48,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:05:48,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840103299] [2022-03-01 16:05:48,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:05:48,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:05:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:05:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:05:49,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:05:49,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840103299] [2022-03-01 16:05:49,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840103299] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:05:49,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968959766] [2022-03-01 16:05:49,669 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:05:49,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:05:49,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:05:49,671 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:05:49,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-01 16:05:49,845 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-01 16:05:49,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:05:49,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-01 16:05:49,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:05:50,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:05:50,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:05:50,672 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 23 treesize of output 7 [2022-03-01 16:05:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:05:50,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:05:50,827 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1933 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1933) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:05:50,849 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:05:50,849 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 45 treesize of output 45 [2022-03-01 16:05:50,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:05:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-03-01 16:05:51,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968959766] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:05:51,572 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:05:51,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 12] total 48 [2022-03-01 16:05:51,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611821481] [2022-03-01 16:05:51,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:05:51,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-01 16:05:51,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:05:51,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-01 16:05:51,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2028, Unknown=1, NotChecked=90, Total=2256 [2022-03-01 16:05:51,573 INFO L87 Difference]: Start difference. First operand 242655 states and 933372 transitions. Second operand has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:06:01,506 INFO L93 Difference]: Finished difference Result 313929 states and 1192252 transitions. [2022-03-01 16:06:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-01 16:06:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:06:01,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:06:04,527 INFO L225 Difference]: With dead ends: 313929 [2022-03-01 16:06:04,527 INFO L226 Difference]: Without dead ends: 306892 [2022-03-01 16:06:04,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3205 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1625, Invalid=11718, Unknown=1, NotChecked=228, Total=13572 [2022-03-01 16:06:04,528 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 2263 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:06:04,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 6637 Invalid, 2986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2560 Invalid, 0 Unknown, 318 Unchecked, 1.2s Time] [2022-03-01 16:06:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306892 states. [2022-03-01 16:06:13,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306892 to 243425. [2022-03-01 16:06:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243425 states, 243424 states have (on average 3.8519784409096887) internal successors, (937664), 243424 states have internal predecessors, (937664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243425 states to 243425 states and 937664 transitions. [2022-03-01 16:06:15,674 INFO L78 Accepts]: Start accepts. Automaton has 243425 states and 937664 transitions. Word has length 202 [2022-03-01 16:06:15,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:06:15,674 INFO L470 AbstractCegarLoop]: Abstraction has 243425 states and 937664 transitions. [2022-03-01 16:06:15,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 243425 states and 937664 transitions. [2022-03-01 16:06:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-01 16:06:16,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:06:16,606 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:06:16,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-01 16:06:16,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:06:16,822 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:06:16,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:06:16,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1692263576, now seen corresponding path program 12 times [2022-03-01 16:06:16,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:06:16,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715022663] [2022-03-01 16:06:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:06:16,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:06:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:06:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:06:17,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:06:17,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715022663] [2022-03-01 16:06:17,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715022663] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:06:17,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878927347] [2022-03-01 16:06:17,610 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:06:17,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:06:17,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:06:17,611 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:06:17,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-01 16:06:17,798 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-01 16:06:17,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:06:17,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-01 16:06:17,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:06:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:06:18,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:06:18,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:06:18,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:06:19,013 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 23 treesize of output 7 [2022-03-01 16:06:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:06:19,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:06:19,138 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:06:19,166 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int)) (v_ArrVal_1982 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1982) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-01 16:06:19,188 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:06:19,188 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 85 treesize of output 85 [2022-03-01 16:06:19,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 64 treesize of output 52 [2022-03-01 16:06:19,193 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 52 treesize of output 46 [2022-03-01 16:06:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-03-01 16:06:20,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878927347] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:06:20,103 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:06:20,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 14] total 46 [2022-03-01 16:06:20,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47133876] [2022-03-01 16:06:20,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:06:20,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-01 16:06:20,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:06:20,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-01 16:06:20,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1757, Unknown=2, NotChecked=170, Total=2070 [2022-03-01 16:06:20,104 INFO L87 Difference]: Start difference. First operand 243425 states and 937664 transitions. Second operand has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:06:25,316 INFO L93 Difference]: Finished difference Result 263834 states and 1009556 transitions. [2022-03-01 16:06:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-01 16:06:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-03-01 16:06:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:06:26,912 INFO L225 Difference]: With dead ends: 263834 [2022-03-01 16:06:26,913 INFO L226 Difference]: Without dead ends: 254658 [2022-03-01 16:06:26,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 384 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1425, Invalid=7511, Unknown=2, NotChecked=374, Total=9312 [2022-03-01 16:06:26,914 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 2069 mSDsluCounter, 5249 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 732 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:06:26,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 5151 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1686 Invalid, 0 Unknown, 732 Unchecked, 0.6s Time] [2022-03-01 16:06:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254658 states. [2022-03-01 16:06:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254658 to 230641. [2022-03-01 16:06:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230641 states, 230640 states have (on average 3.8685006937218174) internal successors, (892231), 230640 states have internal predecessors, (892231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230641 states to 230641 states and 892231 transitions. [2022-03-01 16:06:37,687 INFO L78 Accepts]: Start accepts. Automaton has 230641 states and 892231 transitions. Word has length 202 [2022-03-01 16:06:37,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:06:37,687 INFO L470 AbstractCegarLoop]: Abstraction has 230641 states and 892231 transitions. [2022-03-01 16:06:37,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:06:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 230641 states and 892231 transitions. [2022-03-01 16:06:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-01 16:06:38,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:06:38,838 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:06:38,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-01 16:06:39,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2022-03-01 16:06:39,052 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:06:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:06:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1515193959, now seen corresponding path program 1 times [2022-03-01 16:06:39,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:06:39,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124148616] [2022-03-01 16:06:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:06:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:06:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:06:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:06:41,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:06:41,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124148616] [2022-03-01 16:06:41,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124148616] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:06:41,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171770029] [2022-03-01 16:06:41,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:06:41,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:06:41,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:06:41,241 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:06:41,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-01 16:06:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:06:41,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 65 conjunts are in the unsatisfiable core [2022-03-01 16:06:41,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:06:44,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:06:44,439 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-01 16:06:44,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-03-01 16:06:44,447 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 15 [2022-03-01 16:06:44,544 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 23 treesize of output 7 [2022-03-01 16:06:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:06:44,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:06:44,680 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-03-01 16:06:45,315 INFO L353 Elim1Store]: treesize reduction 27, result has 75.2 percent of original size [2022-03-01 16:06:45,316 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 65 treesize of output 114 [2022-03-01 16:06:45,320 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:06:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-03-01 16:06:48,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171770029] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:06:48,564 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:06:48,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 35, 33] total 101 [2022-03-01 16:06:48,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101541004] [2022-03-01 16:06:48,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:06:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-03-01 16:06:48,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:06:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-03-01 16:06:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=9034, Unknown=1, NotChecked=196, Total=10100 [2022-03-01 16:06:48,566 INFO L87 Difference]: Start difference. First operand 230641 states and 892231 transitions. Second operand has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:07:08,425 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))))) (and .cse0 (or .cse0 (not (<= 0 c_~q1_back~0)) (not (< c_~q2_back~0 c_~n2~0)) (not (< c_~q1_back~0 c_~n1~0)) (not (<= 0 c_~q2_back~0))))) is different from false [2022-03-01 16:07:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:07:18,905 INFO L93 Difference]: Finished difference Result 616132 states and 2358095 transitions. [2022-03-01 16:07:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-03-01 16:07:18,906 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-03-01 16:07:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:07:26,769 INFO L225 Difference]: With dead ends: 616132 [2022-03-01 16:07:26,770 INFO L226 Difference]: Without dead ends: 616132 [2022-03-01 16:07:26,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 361 SyntacticMatches, 26 SemanticMatches, 233 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19318 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=7206, Invalid=46856, Unknown=2, NotChecked=926, Total=54990 [2022-03-01 16:07:26,772 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 8059 mSDsluCounter, 21474 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 19685 SdHoareTripleChecker+Invalid, 11186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 6234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4381 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:07:26,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8059 Valid, 19685 Invalid, 11186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 6234 Invalid, 0 Unknown, 4381 Unchecked, 3.0s Time] [2022-03-01 16:07:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616132 states. [2022-03-01 16:07:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616132 to 250624. [2022-03-01 16:07:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250624 states, 250623 states have (on average 3.833866005913264) internal successors, (960855), 250623 states have internal predecessors, (960855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:07:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250624 states to 250624 states and 960855 transitions. [2022-03-01 16:07:44,378 INFO L78 Accepts]: Start accepts. Automaton has 250624 states and 960855 transitions. Word has length 208 [2022-03-01 16:07:44,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:07:44,379 INFO L470 AbstractCegarLoop]: Abstraction has 250624 states and 960855 transitions. [2022-03-01 16:07:44,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:07:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 250624 states and 960855 transitions. [2022-03-01 16:07:45,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-01 16:07:45,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:07:45,085 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:07:45,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-01 16:07:45,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:07:45,305 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:07:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:07:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1725868805, now seen corresponding path program 2 times [2022-03-01 16:07:45,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:07:45,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136216116] [2022-03-01 16:07:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:07:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:07:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:07:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:07:47,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:07:47,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136216116] [2022-03-01 16:07:47,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136216116] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:07:47,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781124420] [2022-03-01 16:07:47,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:07:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:07:47,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:07:47,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:07:47,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-01 16:07:47,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:07:47,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:07:47,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 39 conjunts are in the unsatisfiable core [2022-03-01 16:07:47,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:07:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:07:49,144 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-01 16:07:49,202 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 24 treesize of output 8 [2022-03-01 16:07:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:07:49,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:07:49,270 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-03-01 16:07:49,424 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:07:49,424 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 44 treesize of output 44 [2022-03-01 16:07:49,426 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 18 [2022-03-01 16:07:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:07:50,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781124420] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:07:50,732 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:07:50,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 22, 22] total 77 [2022-03-01 16:07:50,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884575518] [2022-03-01 16:07:50,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:07:50,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-03-01 16:07:50,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:07:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-03-01 16:07:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=5346, Unknown=1, NotChecked=148, Total=5852 [2022-03-01 16:07:50,751 INFO L87 Difference]: Start difference. First operand 250624 states and 960855 transitions. Second operand has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:08:10,548 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) (not (= |c_thread3Thread1of1ForFork2_~k~0#1| 0))) is different from false [2022-03-01 16:08:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:08:29,817 INFO L93 Difference]: Finished difference Result 1289238 states and 4962415 transitions. [2022-03-01 16:08:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-01 16:08:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-03-01 16:08:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:08:42,093 INFO L225 Difference]: With dead ends: 1289238 [2022-03-01 16:08:42,093 INFO L226 Difference]: Without dead ends: 1289238 [2022-03-01 16:08:42,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 402 SyntacticMatches, 56 SemanticMatches, 248 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27241 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=5846, Invalid=55387, Unknown=31, NotChecked=986, Total=62250 [2022-03-01 16:08:42,096 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 6763 mSDsluCounter, 21266 mSDsCounter, 0 mSdLazyCounter, 6052 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6763 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 14064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 6052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7545 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:08:42,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6763 Valid, 19409 Invalid, 14064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [467 Valid, 6052 Invalid, 0 Unknown, 7545 Unchecked, 3.5s Time] [2022-03-01 16:08:44,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289238 states.