/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 12:46:16,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 12:46:16,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 12:46:16,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 12:46:16,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 12:46:16,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 12:46:16,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 12:46:16,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 12:46:16,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 12:46:16,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 12:46:16,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 12:46:16,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 12:46:16,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 12:46:16,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 12:46:16,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 12:46:16,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 12:46:16,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 12:46:16,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 12:46:16,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 12:46:16,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 12:46:16,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 12:46:16,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 12:46:16,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 12:46:16,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 12:46:16,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 12:46:16,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 12:46:16,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 12:46:16,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 12:46:16,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 12:46:16,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 12:46:16,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 12:46:16,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 12:46:16,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 12:46:16,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 12:46:16,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 12:46:16,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 12:46:16,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 12:46:16,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 12:46:16,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 12:46:16,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 12:46:16,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 12:46:16,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 12:46:16,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 12:46:16,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 12:46:16,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 12:46:16,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 12:46:16,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 12:46:16,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 12:46:16,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 12:46:16,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 12:46:16,600 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 12:46:16,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 12:46:16,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 12:46:16,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:46:16,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 12:46:16,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 12:46:16,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 12:46:16,603 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 12:46:16,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 12:46:16,603 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 12:46:16,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 12:46:16,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 12:46:16,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 12:46:16,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 12:46:16,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 12:46:16,778 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 12:46:16,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-01-18 12:46:16,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf4595c25/a4e7df4e1bc64b92a9a8f0329a53ee79/FLAGc6cae87ee [2022-01-18 12:46:17,143 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 12:46:17,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-01-18 12:46:17,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf4595c25/a4e7df4e1bc64b92a9a8f0329a53ee79/FLAGc6cae87ee [2022-01-18 12:46:17,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf4595c25/a4e7df4e1bc64b92a9a8f0329a53ee79 [2022-01-18 12:46:17,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 12:46:17,582 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 12:46:17,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 12:46:17,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 12:46:17,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 12:46:17,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52746f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17, skipping insertion in model container [2022-01-18 12:46:17,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 12:46:17,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 12:46:17,722 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-mult-4.wvr.c[2612,2625] [2022-01-18 12:46:17,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:46:17,728 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 12:46:17,742 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-mult-4.wvr.c[2612,2625] [2022-01-18 12:46:17,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:46:17,751 INFO L208 MainTranslator]: Completed translation [2022-01-18 12:46:17,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17 WrapperNode [2022-01-18 12:46:17,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 12:46:17,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 12:46:17,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 12:46:17,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 12:46:17,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,778 INFO L137 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2022-01-18 12:46:17,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 12:46:17,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 12:46:17,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 12:46:17,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 12:46:17,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 12:46:17,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 12:46:17,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 12:46:17,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 12:46:17,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (1/1) ... [2022-01-18 12:46:17,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:46:17,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:46:17,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 12:46:17,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 12:46:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 12:46:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 12:46:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 12:46:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 12:46:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 12:46:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 12:46:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 12:46:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 12:46:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 12:46:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 12:46:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 12:46:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 12:46:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 12:46:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 12:46:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 12:46:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 12:46:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 12:46:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 12:46:17,880 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 12:46:17,954 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 12:46:17,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 12:46:18,096 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 12:46:18,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 12:46:18,127 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 12:46:18,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:46:18 BoogieIcfgContainer [2022-01-18 12:46:18,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 12:46:18,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 12:46:18,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 12:46:18,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 12:46:18,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:46:17" (1/3) ... [2022-01-18 12:46:18,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c8f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:46:18, skipping insertion in model container [2022-01-18 12:46:18,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:46:17" (2/3) ... [2022-01-18 12:46:18,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c8f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:46:18, skipping insertion in model container [2022-01-18 12:46:18,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:46:18" (3/3) ... [2022-01-18 12:46:18,133 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-01-18 12:46:18,136 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 12:46:18,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 12:46:18,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 12:46:18,136 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 12:46:18,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,173 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,173 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,174 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,175 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,176 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,182 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,182 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,182 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,183 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,183 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,183 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,185 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,186 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,187 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,187 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,187 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,188 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,188 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,188 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,188 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,192 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,195 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,196 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,198 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,198 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,198 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:46:18,203 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 12:46:18,230 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 12:46:18,234 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 12:46:18,235 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 12:46:18,243 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 133 transitions, 298 flow [2022-01-18 12:46:19,390 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 12:46:19,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:19,774 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] [2022-01-18 12:46:19,775 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:19,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1708599078, now seen corresponding path program 1 times [2022-01-18 12:46:19,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:19,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724664641] [2022-01-18 12:46:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:19,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:20,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:20,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724664641] [2022-01-18 12:46:20,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724664641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:20,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:20,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 12:46:20,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717894392] [2022-01-18 12:46:20,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:20,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 12:46:20,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 12:46:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:46:20,142 INFO L87 Difference]: Start difference. First operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 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 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:20,557 INFO L93 Difference]: Finished difference Result 33659 states and 153296 transitions. [2022-01-18 12:46:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 12:46:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-18 12:46:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:20,902 INFO L225 Difference]: With dead ends: 33659 [2022-01-18 12:46:20,902 INFO L226 Difference]: Without dead ends: 33657 [2022-01-18 12:46:20,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:46:20,907 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:20,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33657 states. [2022-01-18 12:46:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33657 to 33657. [2022-01-18 12:46:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33657 states, 33656 states have (on average 4.554730211552175) internal successors, (153294), 33656 states have internal predecessors, (153294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33657 states to 33657 states and 153294 transitions. [2022-01-18 12:46:22,372 INFO L78 Accepts]: Start accepts. Automaton has 33657 states and 153294 transitions. Word has length 88 [2022-01-18 12:46:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:22,372 INFO L470 AbstractCegarLoop]: Abstraction has 33657 states and 153294 transitions. [2022-01-18 12:46:22,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 33657 states and 153294 transitions. [2022-01-18 12:46:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 12:46:22,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:22,501 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] [2022-01-18 12:46:22,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 12:46:22,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:22,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 560306940, now seen corresponding path program 1 times [2022-01-18 12:46:22,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:22,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317088346] [2022-01-18 12:46:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:22,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:22,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:22,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317088346] [2022-01-18 12:46:22,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317088346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:22,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:22,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:46:22,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743101408] [2022-01-18 12:46:22,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:22,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:46:22,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:22,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:46:22,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:22,706 INFO L87 Difference]: Start difference. First operand 33657 states and 153294 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:23,258 INFO L93 Difference]: Finished difference Result 40731 states and 182634 transitions. [2022-01-18 12:46:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:46:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-18 12:46:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:23,637 INFO L225 Difference]: With dead ends: 40731 [2022-01-18 12:46:23,637 INFO L226 Difference]: Without dead ends: 38709 [2022-01-18 12:46:23,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:46:23,641 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 8 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:23,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 347 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38709 states. [2022-01-18 12:46:24,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38709 to 38277. [2022-01-18 12:46:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38277 states, 38276 states have (on average 4.508229700073153) internal successors, (172557), 38276 states have internal predecessors, (172557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38277 states to 38277 states and 172557 transitions. [2022-01-18 12:46:24,948 INFO L78 Accepts]: Start accepts. Automaton has 38277 states and 172557 transitions. Word has length 88 [2022-01-18 12:46:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:24,949 INFO L470 AbstractCegarLoop]: Abstraction has 38277 states and 172557 transitions. [2022-01-18 12:46:24,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 38277 states and 172557 transitions. [2022-01-18 12:46:25,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 12:46:25,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:25,046 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] [2022-01-18 12:46:25,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 12:46:25,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:25,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1145915436, now seen corresponding path program 1 times [2022-01-18 12:46:25,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:25,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418770930] [2022-01-18 12:46:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:25,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:25,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:25,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418770930] [2022-01-18 12:46:25,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418770930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:25,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:25,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:46:25,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694259554] [2022-01-18 12:46:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:25,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:46:25,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:25,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:46:25,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:25,159 INFO L87 Difference]: Start difference. First operand 38277 states and 172557 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:25,937 INFO L93 Difference]: Finished difference Result 63219 states and 280029 transitions. [2022-01-18 12:46:25,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:46:25,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 12:46:25,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:26,513 INFO L225 Difference]: With dead ends: 63219 [2022-01-18 12:46:26,514 INFO L226 Difference]: Without dead ends: 61095 [2022-01-18 12:46:26,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:46:26,519 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 136 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:26,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 556 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:46:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61095 states. [2022-01-18 12:46:27,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61095 to 50217. [2022-01-18 12:46:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50217 states, 50216 states have (on average 4.463278636291222) internal successors, (224128), 50216 states have internal predecessors, (224128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50217 states to 50217 states and 224128 transitions. [2022-01-18 12:46:28,294 INFO L78 Accepts]: Start accepts. Automaton has 50217 states and 224128 transitions. Word has length 93 [2022-01-18 12:46:28,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:28,295 INFO L470 AbstractCegarLoop]: Abstraction has 50217 states and 224128 transitions. [2022-01-18 12:46:28,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:28,295 INFO L276 IsEmpty]: Start isEmpty. Operand 50217 states and 224128 transitions. [2022-01-18 12:46:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 12:46:28,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:28,438 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] [2022-01-18 12:46:28,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 12:46:28,438 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:28,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:28,439 INFO L85 PathProgramCache]: Analyzing trace with hash -697904180, now seen corresponding path program 1 times [2022-01-18 12:46:28,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:28,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052715827] [2022-01-18 12:46:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:28,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:28,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052715827] [2022-01-18 12:46:28,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052715827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:28,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:28,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 12:46:28,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393650811] [2022-01-18 12:46:28,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:28,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 12:46:28,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:28,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 12:46:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 12:46:28,511 INFO L87 Difference]: Start difference. First operand 50217 states and 224128 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:29,053 INFO L93 Difference]: Finished difference Result 71756 states and 319699 transitions. [2022-01-18 12:46:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 12:46:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 12:46:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:29,828 INFO L225 Difference]: With dead ends: 71756 [2022-01-18 12:46:29,828 INFO L226 Difference]: Without dead ends: 69278 [2022-01-18 12:46:29,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 12:46:29,830 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 110 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:29,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 329 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69278 states. [2022-01-18 12:46:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69278 to 53251. [2022-01-18 12:46:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53251 states, 53250 states have (on average 4.474985915492958) internal successors, (238293), 53250 states have internal predecessors, (238293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53251 states to 53251 states and 238293 transitions. [2022-01-18 12:46:31,817 INFO L78 Accepts]: Start accepts. Automaton has 53251 states and 238293 transitions. Word has length 93 [2022-01-18 12:46:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:31,817 INFO L470 AbstractCegarLoop]: Abstraction has 53251 states and 238293 transitions. [2022-01-18 12:46:31,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 53251 states and 238293 transitions. [2022-01-18 12:46:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 12:46:32,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:32,000 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] [2022-01-18 12:46:32,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 12:46:32,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1068497080, now seen corresponding path program 2 times [2022-01-18 12:46:32,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:32,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703704579] [2022-01-18 12:46:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:32,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:32,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:32,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703704579] [2022-01-18 12:46:32,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703704579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:32,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:32,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 12:46:32,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611224020] [2022-01-18 12:46:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:32,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 12:46:32,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:32,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 12:46:32,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 12:46:32,086 INFO L87 Difference]: Start difference. First operand 53251 states and 238293 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:33,053 INFO L93 Difference]: Finished difference Result 89701 states and 395838 transitions. [2022-01-18 12:46:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:46:33,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 12:46:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:33,489 INFO L225 Difference]: With dead ends: 89701 [2022-01-18 12:46:33,490 INFO L226 Difference]: Without dead ends: 88765 [2022-01-18 12:46:33,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:33,490 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 133 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:33,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 372 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88765 states. [2022-01-18 12:46:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88765 to 63121. [2022-01-18 12:46:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63121 states, 63120 states have (on average 4.501489226869455) internal successors, (284134), 63120 states have internal predecessors, (284134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63121 states to 63121 states and 284134 transitions. [2022-01-18 12:46:35,915 INFO L78 Accepts]: Start accepts. Automaton has 63121 states and 284134 transitions. Word has length 93 [2022-01-18 12:46:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:35,916 INFO L470 AbstractCegarLoop]: Abstraction has 63121 states and 284134 transitions. [2022-01-18 12:46:35,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 63121 states and 284134 transitions. [2022-01-18 12:46:36,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 12:46:36,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:36,079 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] [2022-01-18 12:46:36,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 12:46:36,079 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:36,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:36,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1833939858, now seen corresponding path program 3 times [2022-01-18 12:46:36,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:36,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164692741] [2022-01-18 12:46:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:36,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:36,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:36,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164692741] [2022-01-18 12:46:36,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164692741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:36,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:36,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 12:46:36,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682648217] [2022-01-18 12:46:36,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:36,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 12:46:36,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 12:46:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 12:46:36,158 INFO L87 Difference]: Start difference. First operand 63121 states and 284134 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:37,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:37,098 INFO L93 Difference]: Finished difference Result 76706 states and 343340 transitions. [2022-01-18 12:46:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 12:46:37,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 12:46:37,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:37,507 INFO L225 Difference]: With dead ends: 76706 [2022-01-18 12:46:37,507 INFO L226 Difference]: Without dead ends: 75467 [2022-01-18 12:46:37,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 12:46:37,508 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 103 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:37,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 289 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:46:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75467 states. [2022-01-18 12:46:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75467 to 51516. [2022-01-18 12:46:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51516 states, 51515 states have (on average 4.475511986799961) internal successors, (230556), 51515 states have internal predecessors, (230556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51516 states to 51516 states and 230556 transitions. [2022-01-18 12:46:39,291 INFO L78 Accepts]: Start accepts. Automaton has 51516 states and 230556 transitions. Word has length 93 [2022-01-18 12:46:39,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:39,291 INFO L470 AbstractCegarLoop]: Abstraction has 51516 states and 230556 transitions. [2022-01-18 12:46:39,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:39,292 INFO L276 IsEmpty]: Start isEmpty. Operand 51516 states and 230556 transitions. [2022-01-18 12:46:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:39,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:39,428 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] [2022-01-18 12:46:39,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 12:46:39,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2054734952, now seen corresponding path program 1 times [2022-01-18 12:46:39,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421405375] [2022-01-18 12:46:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:39,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:39,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:39,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421405375] [2022-01-18 12:46:39,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421405375] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:46:39,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60539994] [2022-01-18 12:46:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:39,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:46:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:46:39,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:46:39,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 12:46:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:39,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 12:46:39,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:46:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:39,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:46:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:39,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60539994] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:46:39,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:46:39,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2022-01-18 12:46:39,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925133549] [2022-01-18 12:46:39,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:39,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 12:46:39,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:39,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 12:46:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:46:39,986 INFO L87 Difference]: Start difference. First operand 51516 states and 230556 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:40,746 INFO L93 Difference]: Finished difference Result 55339 states and 247957 transitions. [2022-01-18 12:46:40,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 12:46:40,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:46:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:40,953 INFO L225 Difference]: With dead ends: 55339 [2022-01-18 12:46:40,953 INFO L226 Difference]: Without dead ends: 55339 [2022-01-18 12:46:40,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:46:40,954 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 95 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:40,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 258 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 12:46:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55339 states. [2022-01-18 12:46:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55339 to 55339. [2022-01-18 12:46:42,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55339 states, 55338 states have (on average 4.480772705916369) internal successors, (247957), 55338 states have internal predecessors, (247957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55339 states to 55339 states and 247957 transitions. [2022-01-18 12:46:42,912 INFO L78 Accepts]: Start accepts. Automaton has 55339 states and 247957 transitions. Word has length 98 [2022-01-18 12:46:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:42,913 INFO L470 AbstractCegarLoop]: Abstraction has 55339 states and 247957 transitions. [2022-01-18 12:46:42,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 55339 states and 247957 transitions. [2022-01-18 12:46:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:43,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:43,080 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] [2022-01-18 12:46:43,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 12:46:43,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:46:43,288 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:43,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1162914164, now seen corresponding path program 1 times [2022-01-18 12:46:43,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:43,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425081627] [2022-01-18 12:46:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:43,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:43,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:43,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425081627] [2022-01-18 12:46:43,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425081627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:43,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:43,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:46:43,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65450461] [2022-01-18 12:46:43,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:43,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:46:43,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:46:43,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:43,389 INFO L87 Difference]: Start difference. First operand 55339 states and 247957 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:43,990 INFO L93 Difference]: Finished difference Result 85069 states and 383068 transitions. [2022-01-18 12:46:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:46:43,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:46:43,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:44,765 INFO L225 Difference]: With dead ends: 85069 [2022-01-18 12:46:44,765 INFO L226 Difference]: Without dead ends: 85069 [2022-01-18 12:46:44,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:44,766 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 119 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:44,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 447 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:46:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85069 states. [2022-01-18 12:46:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85069 to 62530. [2022-01-18 12:46:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62530 states, 62529 states have (on average 4.458203393625358) internal successors, (278767), 62529 states have internal predecessors, (278767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62530 states to 62530 states and 278767 transitions. [2022-01-18 12:46:46,759 INFO L78 Accepts]: Start accepts. Automaton has 62530 states and 278767 transitions. Word has length 98 [2022-01-18 12:46:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:46,760 INFO L470 AbstractCegarLoop]: Abstraction has 62530 states and 278767 transitions. [2022-01-18 12:46:46,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 62530 states and 278767 transitions. [2022-01-18 12:46:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:46,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:46,911 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] [2022-01-18 12:46:46,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 12:46:46,911 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:46,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1146094196, now seen corresponding path program 2 times [2022-01-18 12:46:46,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:46,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150102123] [2022-01-18 12:46:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:46,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:46,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:46,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:46,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150102123] [2022-01-18 12:46:46,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150102123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:46,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:46,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:46:46,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267610267] [2022-01-18 12:46:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:46,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:46:46,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:46:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:46:46,995 INFO L87 Difference]: Start difference. First operand 62530 states and 278767 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:48,238 INFO L93 Difference]: Finished difference Result 88758 states and 398107 transitions. [2022-01-18 12:46:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:46:48,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:46:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:48,596 INFO L225 Difference]: With dead ends: 88758 [2022-01-18 12:46:48,598 INFO L226 Difference]: Without dead ends: 88758 [2022-01-18 12:46:48,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:46:48,599 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 159 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:48,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 796 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:46:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88758 states. [2022-01-18 12:46:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88758 to 65588. [2022-01-18 12:46:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65588 states, 65587 states have (on average 4.465122661503042) internal successors, (292854), 65587 states have internal predecessors, (292854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65588 states to 65588 states and 292854 transitions. [2022-01-18 12:46:51,155 INFO L78 Accepts]: Start accepts. Automaton has 65588 states and 292854 transitions. Word has length 98 [2022-01-18 12:46:51,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:51,155 INFO L470 AbstractCegarLoop]: Abstraction has 65588 states and 292854 transitions. [2022-01-18 12:46:51,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand 65588 states and 292854 transitions. [2022-01-18 12:46:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:51,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:51,315 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] [2022-01-18 12:46:51,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 12:46:51,315 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:51,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:51,315 INFO L85 PathProgramCache]: Analyzing trace with hash 776329516, now seen corresponding path program 2 times [2022-01-18 12:46:51,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:51,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553578266] [2022-01-18 12:46:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:51,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:51,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:51,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553578266] [2022-01-18 12:46:51,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553578266] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:46:51,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772544564] [2022-01-18 12:46:51,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:46:51,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:46:51,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:46:51,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:46:51,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 12:46:51,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:46:51,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:46:51,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:46:51,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:46:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:46:51,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 12:46:51,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772544564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:51,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 12:46:51,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-01-18 12:46:51,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107185433] [2022-01-18 12:46:51,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:51,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 12:46:51,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 12:46:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:46:51,617 INFO L87 Difference]: Start difference. First operand 65588 states and 292854 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:52,630 INFO L93 Difference]: Finished difference Result 87554 states and 392961 transitions. [2022-01-18 12:46:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 12:46:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:46:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:52,966 INFO L225 Difference]: With dead ends: 87554 [2022-01-18 12:46:52,966 INFO L226 Difference]: Without dead ends: 83213 [2022-01-18 12:46:52,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:46:52,967 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:52,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 316 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83213 states. [2022-01-18 12:46:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83213 to 59564. [2022-01-18 12:46:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59564 states, 59563 states have (on average 4.520759531924181) internal successors, (269270), 59563 states have internal predecessors, (269270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59564 states to 59564 states and 269270 transitions. [2022-01-18 12:46:55,248 INFO L78 Accepts]: Start accepts. Automaton has 59564 states and 269270 transitions. Word has length 98 [2022-01-18 12:46:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:55,248 INFO L470 AbstractCegarLoop]: Abstraction has 59564 states and 269270 transitions. [2022-01-18 12:46:55,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 59564 states and 269270 transitions. [2022-01-18 12:46:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:55,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:55,393 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] [2022-01-18 12:46:55,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 12:46:55,602 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,SelfDestructingSolverStorable9 [2022-01-18 12:46:55,602 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:55,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash -541598790, now seen corresponding path program 3 times [2022-01-18 12:46:55,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:55,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186683135] [2022-01-18 12:46:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:55,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:55,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:55,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186683135] [2022-01-18 12:46:55,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186683135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:55,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:55,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:46:55,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213616440] [2022-01-18 12:46:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:55,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:46:55,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:46:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:55,667 INFO L87 Difference]: Start difference. First operand 59564 states and 269270 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:46:56,734 INFO L93 Difference]: Finished difference Result 93055 states and 418675 transitions. [2022-01-18 12:46:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:46:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:46:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:46:57,169 INFO L225 Difference]: With dead ends: 93055 [2022-01-18 12:46:57,170 INFO L226 Difference]: Without dead ends: 91375 [2022-01-18 12:46:57,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:46:57,170 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 114 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:46:57,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 368 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:46:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91375 states. [2022-01-18 12:46:58,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91375 to 64496. [2022-01-18 12:46:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64496 states, 64495 states have (on average 4.511869137142414) internal successors, (290993), 64495 states have internal predecessors, (290993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64496 states to 64496 states and 290993 transitions. [2022-01-18 12:46:59,576 INFO L78 Accepts]: Start accepts. Automaton has 64496 states and 290993 transitions. Word has length 98 [2022-01-18 12:46:59,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:46:59,576 INFO L470 AbstractCegarLoop]: Abstraction has 64496 states and 290993 transitions. [2022-01-18 12:46:59,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:46:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 64496 states and 290993 transitions. [2022-01-18 12:46:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:46:59,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:46:59,755 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] [2022-01-18 12:46:59,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 12:46:59,755 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:46:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:46:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 696832420, now seen corresponding path program 4 times [2022-01-18 12:46:59,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:46:59,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432216252] [2022-01-18 12:46:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:46:59,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:46:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:46:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:46:59,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:46:59,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432216252] [2022-01-18 12:46:59,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432216252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:46:59,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:46:59,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:46:59,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343499396] [2022-01-18 12:46:59,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:46:59,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:46:59,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:46:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:46:59,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:46:59,821 INFO L87 Difference]: Start difference. First operand 64496 states and 290993 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:00,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:00,538 INFO L93 Difference]: Finished difference Result 104843 states and 472926 transitions. [2022-01-18 12:47:00,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:47:00,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:01,573 INFO L225 Difference]: With dead ends: 104843 [2022-01-18 12:47:01,574 INFO L226 Difference]: Without dead ends: 104843 [2022-01-18 12:47:01,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:01,574 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 100 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:01,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 349 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104843 states. [2022-01-18 12:47:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104843 to 67278. [2022-01-18 12:47:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67278 states, 67277 states have (on average 4.5062948704609305) internal successors, (303170), 67277 states have internal predecessors, (303170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67278 states to 67278 states and 303170 transitions. [2022-01-18 12:47:04,241 INFO L78 Accepts]: Start accepts. Automaton has 67278 states and 303170 transitions. Word has length 98 [2022-01-18 12:47:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:04,241 INFO L470 AbstractCegarLoop]: Abstraction has 67278 states and 303170 transitions. [2022-01-18 12:47:04,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 67278 states and 303170 transitions. [2022-01-18 12:47:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:04,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:04,443 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] [2022-01-18 12:47:04,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 12:47:04,443 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1948353230, now seen corresponding path program 5 times [2022-01-18 12:47:04,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:04,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949856493] [2022-01-18 12:47:04,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:04,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:04,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:04,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:04,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949856493] [2022-01-18 12:47:04,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949856493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:04,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:04,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:47:04,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679888322] [2022-01-18 12:47:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:04,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:47:04,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:47:04,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:04,570 INFO L87 Difference]: Start difference. First operand 67278 states and 303170 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:06,090 INFO L93 Difference]: Finished difference Result 139764 states and 628872 transitions. [2022-01-18 12:47:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:47:06,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:06,747 INFO L225 Difference]: With dead ends: 139764 [2022-01-18 12:47:06,747 INFO L226 Difference]: Without dead ends: 138402 [2022-01-18 12:47:06,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:06,748 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 166 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:06,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 616 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:06,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138402 states. [2022-01-18 12:47:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138402 to 64544. [2022-01-18 12:47:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512789922997071) internal successors, (291269), 64543 states have internal predecessors, (291269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291269 transitions. [2022-01-18 12:47:09,616 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291269 transitions. Word has length 98 [2022-01-18 12:47:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:09,617 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291269 transitions. [2022-01-18 12:47:09,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291269 transitions. [2022-01-18 12:47:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:09,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:09,767 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] [2022-01-18 12:47:09,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 12:47:09,767 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:09,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1919919388, now seen corresponding path program 6 times [2022-01-18 12:47:09,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:09,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729594745] [2022-01-18 12:47:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:09,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:09,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:09,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729594745] [2022-01-18 12:47:09,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729594745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:09,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:09,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:47:09,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420788480] [2022-01-18 12:47:09,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:09,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:47:09,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:09,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:47:09,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:09,808 INFO L87 Difference]: Start difference. First operand 64544 states and 291269 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:10,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:10,869 INFO L93 Difference]: Finished difference Result 92280 states and 418087 transitions. [2022-01-18 12:47:10,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:47:10,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:10,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:11,246 INFO L225 Difference]: With dead ends: 92280 [2022-01-18 12:47:11,246 INFO L226 Difference]: Without dead ends: 92136 [2022-01-18 12:47:11,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:11,246 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 78 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:11,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 520 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92136 states. [2022-01-18 12:47:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92136 to 64544. [2022-01-18 12:47:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512046232744062) internal successors, (291221), 64543 states have internal predecessors, (291221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291221 transitions. [2022-01-18 12:47:13,728 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291221 transitions. Word has length 98 [2022-01-18 12:47:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:13,728 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291221 transitions. [2022-01-18 12:47:13,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291221 transitions. [2022-01-18 12:47:13,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:13,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:13,885 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] [2022-01-18 12:47:13,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 12:47:13,885 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:13,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1362461532, now seen corresponding path program 7 times [2022-01-18 12:47:13,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:13,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454999359] [2022-01-18 12:47:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:13,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:13,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:13,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454999359] [2022-01-18 12:47:13,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454999359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:13,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:13,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:47:13,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081087719] [2022-01-18 12:47:13,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:13,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:47:13,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:13,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:47:13,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:13,939 INFO L87 Difference]: Start difference. First operand 64544 states and 291221 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:15,163 INFO L93 Difference]: Finished difference Result 98473 states and 437309 transitions. [2022-01-18 12:47:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:47:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:15,557 INFO L225 Difference]: With dead ends: 98473 [2022-01-18 12:47:15,557 INFO L226 Difference]: Without dead ends: 89791 [2022-01-18 12:47:15,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:47:15,558 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 146 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:15,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 523 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89791 states. [2022-01-18 12:47:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89791 to 66476. [2022-01-18 12:47:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66476 states, 66475 states have (on average 4.542474614516736) internal successors, (301961), 66475 states have internal predecessors, (301961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66476 states to 66476 states and 301961 transitions. [2022-01-18 12:47:18,108 INFO L78 Accepts]: Start accepts. Automaton has 66476 states and 301961 transitions. Word has length 98 [2022-01-18 12:47:18,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:18,108 INFO L470 AbstractCegarLoop]: Abstraction has 66476 states and 301961 transitions. [2022-01-18 12:47:18,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 66476 states and 301961 transitions. [2022-01-18 12:47:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:18,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:18,338 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] [2022-01-18 12:47:18,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 12:47:18,339 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:18,339 INFO L85 PathProgramCache]: Analyzing trace with hash -345364374, now seen corresponding path program 8 times [2022-01-18 12:47:18,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:18,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963905973] [2022-01-18 12:47:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:18,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:18,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963905973] [2022-01-18 12:47:18,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963905973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:18,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:18,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:47:18,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829116407] [2022-01-18 12:47:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:18,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:47:18,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:18,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:47:18,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:18,439 INFO L87 Difference]: Start difference. First operand 66476 states and 301961 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:20,156 INFO L93 Difference]: Finished difference Result 130474 states and 595700 transitions. [2022-01-18 12:47:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:47:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:20,943 INFO L225 Difference]: With dead ends: 130474 [2022-01-18 12:47:20,943 INFO L226 Difference]: Without dead ends: 130474 [2022-01-18 12:47:20,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:20,943 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 118 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:20,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 344 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130474 states. [2022-01-18 12:47:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130474 to 69830. [2022-01-18 12:47:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69830 states, 69829 states have (on average 4.55353792836787) internal successors, (317969), 69829 states have internal predecessors, (317969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69830 states to 69830 states and 317969 transitions. [2022-01-18 12:47:23,831 INFO L78 Accepts]: Start accepts. Automaton has 69830 states and 317969 transitions. Word has length 98 [2022-01-18 12:47:23,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:23,832 INFO L470 AbstractCegarLoop]: Abstraction has 69830 states and 317969 transitions. [2022-01-18 12:47:23,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:23,832 INFO L276 IsEmpty]: Start isEmpty. Operand 69830 states and 317969 transitions. [2022-01-18 12:47:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:24,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:24,000 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] [2022-01-18 12:47:24,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 12:47:24,000 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1304417272, now seen corresponding path program 9 times [2022-01-18 12:47:24,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:24,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518939170] [2022-01-18 12:47:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:24,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:24,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:24,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518939170] [2022-01-18 12:47:24,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518939170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:24,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:24,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:47:24,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787849564] [2022-01-18 12:47:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:24,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:47:24,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:47:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:24,054 INFO L87 Difference]: Start difference. First operand 69830 states and 317969 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:25,411 INFO L93 Difference]: Finished difference Result 132262 states and 598204 transitions. [2022-01-18 12:47:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:47:25,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:25,980 INFO L225 Difference]: With dead ends: 132262 [2022-01-18 12:47:25,980 INFO L226 Difference]: Without dead ends: 130228 [2022-01-18 12:47:25,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:25,980 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 193 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:25,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 394 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130228 states. [2022-01-18 12:47:28,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130228 to 66349. [2022-01-18 12:47:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66349 states, 66348 states have (on average 4.54179477904383) internal successors, (301339), 66348 states have internal predecessors, (301339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66349 states to 66349 states and 301339 transitions. [2022-01-18 12:47:28,813 INFO L78 Accepts]: Start accepts. Automaton has 66349 states and 301339 transitions. Word has length 98 [2022-01-18 12:47:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:28,813 INFO L470 AbstractCegarLoop]: Abstraction has 66349 states and 301339 transitions. [2022-01-18 12:47:28,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 66349 states and 301339 transitions. [2022-01-18 12:47:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:29,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:29,386 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] [2022-01-18 12:47:29,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 12:47:29,386 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:29,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:29,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1332851114, now seen corresponding path program 10 times [2022-01-18 12:47:29,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:29,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900501699] [2022-01-18 12:47:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:29,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:29,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:29,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900501699] [2022-01-18 12:47:29,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900501699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:29,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:29,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:47:29,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475056814] [2022-01-18 12:47:29,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:29,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:47:29,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:29,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:47:29,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:29,468 INFO L87 Difference]: Start difference. First operand 66349 states and 301339 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:30,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:30,313 INFO L93 Difference]: Finished difference Result 118447 states and 535789 transitions. [2022-01-18 12:47:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:47:30,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:30,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:31,339 INFO L225 Difference]: With dead ends: 118447 [2022-01-18 12:47:31,339 INFO L226 Difference]: Without dead ends: 118399 [2022-01-18 12:47:31,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:31,340 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 95 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:31,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 499 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118399 states. [2022-01-18 12:47:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118399 to 66333. [2022-01-18 12:47:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66333 states, 66332 states have (on average 4.5415033468009405) internal successors, (301247), 66332 states have internal predecessors, (301247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66333 states to 66333 states and 301247 transitions. [2022-01-18 12:47:33,582 INFO L78 Accepts]: Start accepts. Automaton has 66333 states and 301247 transitions. Word has length 98 [2022-01-18 12:47:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:33,582 INFO L470 AbstractCegarLoop]: Abstraction has 66333 states and 301247 transitions. [2022-01-18 12:47:33,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 66333 states and 301247 transitions. [2022-01-18 12:47:34,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 12:47:34,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:34,336 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] [2022-01-18 12:47:34,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 12:47:34,337 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:34,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:34,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1983847338, now seen corresponding path program 11 times [2022-01-18 12:47:34,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:34,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751221959] [2022-01-18 12:47:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:34,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:34,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:34,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751221959] [2022-01-18 12:47:34,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751221959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:34,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:34,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:47:34,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936992230] [2022-01-18 12:47:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:34,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:47:34,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:34,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:47:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:47:34,391 INFO L87 Difference]: Start difference. First operand 66333 states and 301247 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:34,985 INFO L93 Difference]: Finished difference Result 84699 states and 386649 transitions. [2022-01-18 12:47:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:47:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 12:47:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:35,314 INFO L225 Difference]: With dead ends: 84699 [2022-01-18 12:47:35,314 INFO L226 Difference]: Without dead ends: 84603 [2022-01-18 12:47:35,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:47:35,314 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 69 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:35,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 355 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:47:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84603 states. [2022-01-18 12:47:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84603 to 65856. [2022-01-18 12:47:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65856 states, 65855 states have (on average 4.5458659175461245) internal successors, (299368), 65855 states have internal predecessors, (299368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65856 states to 65856 states and 299368 transitions. [2022-01-18 12:47:37,801 INFO L78 Accepts]: Start accepts. Automaton has 65856 states and 299368 transitions. Word has length 98 [2022-01-18 12:47:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:37,802 INFO L470 AbstractCegarLoop]: Abstraction has 65856 states and 299368 transitions. [2022-01-18 12:47:37,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 65856 states and 299368 transitions. [2022-01-18 12:47:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 12:47:37,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:37,962 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] [2022-01-18 12:47:37,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 12:47:37,962 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:37,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1850810616, now seen corresponding path program 1 times [2022-01-18 12:47:37,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:37,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930370886] [2022-01-18 12:47:37,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:37,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:38,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:38,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930370886] [2022-01-18 12:47:38,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930370886] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:47:38,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982527084] [2022-01-18 12:47:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:38,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:47:38,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:47:38,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:47:38,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 12:47:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:38,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 12:47:38,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:47:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:38,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:47:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:38,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982527084] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:47:38,467 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:47:38,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 10 [2022-01-18 12:47:38,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900531724] [2022-01-18 12:47:38,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:47:38,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 12:47:38,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 12:47:38,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:47:38,469 INFO L87 Difference]: Start difference. First operand 65856 states and 299368 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:40,659 INFO L93 Difference]: Finished difference Result 174594 states and 797644 transitions. [2022-01-18 12:47:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 12:47:40,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 12:47:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:41,529 INFO L225 Difference]: With dead ends: 174594 [2022-01-18 12:47:41,530 INFO L226 Difference]: Without dead ends: 174594 [2022-01-18 12:47:41,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-01-18 12:47:41,530 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 498 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:41,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1373 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 12:47:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174594 states. [2022-01-18 12:47:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174594 to 62931. [2022-01-18 12:47:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62931 states, 62930 states have (on average 4.5571269664706815) internal successors, (286780), 62930 states have internal predecessors, (286780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62931 states to 62931 states and 286780 transitions. [2022-01-18 12:47:44,725 INFO L78 Accepts]: Start accepts. Automaton has 62931 states and 286780 transitions. Word has length 103 [2022-01-18 12:47:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:44,726 INFO L470 AbstractCegarLoop]: Abstraction has 62931 states and 286780 transitions. [2022-01-18 12:47:44,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 62931 states and 286780 transitions. [2022-01-18 12:47:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 12:47:44,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:44,877 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] [2022-01-18 12:47:44,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 12:47:45,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:47:45,077 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2140980418, now seen corresponding path program 1 times [2022-01-18 12:47:45,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:45,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564317456] [2022-01-18 12:47:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:45,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:45,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564317456] [2022-01-18 12:47:45,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564317456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:45,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:45,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:47:45,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680699834] [2022-01-18 12:47:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:47:45,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:47:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:45,139 INFO L87 Difference]: Start difference. First operand 62931 states and 286780 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:46,295 INFO L93 Difference]: Finished difference Result 111649 states and 511120 transitions. [2022-01-18 12:47:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:47:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 12:47:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:46,776 INFO L225 Difference]: With dead ends: 111649 [2022-01-18 12:47:46,776 INFO L226 Difference]: Without dead ends: 111649 [2022-01-18 12:47:46,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:46,777 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 206 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:46,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 487 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111649 states. [2022-01-18 12:47:49,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111649 to 64031. [2022-01-18 12:47:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64031 states, 64030 states have (on average 4.558878650632516) internal successors, (291905), 64030 states have internal predecessors, (291905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64031 states to 64031 states and 291905 transitions. [2022-01-18 12:47:49,487 INFO L78 Accepts]: Start accepts. Automaton has 64031 states and 291905 transitions. Word has length 103 [2022-01-18 12:47:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:49,487 INFO L470 AbstractCegarLoop]: Abstraction has 64031 states and 291905 transitions. [2022-01-18 12:47:49,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 64031 states and 291905 transitions. [2022-01-18 12:47:49,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 12:47:49,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:49,642 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] [2022-01-18 12:47:49,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 12:47:49,642 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1279880700, now seen corresponding path program 2 times [2022-01-18 12:47:49,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:49,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820465173] [2022-01-18 12:47:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:49,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:49,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:49,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820465173] [2022-01-18 12:47:49,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820465173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:47:49,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:47:49,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:47:49,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986133986] [2022-01-18 12:47:49,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:47:49,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:47:49,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:49,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:47:49,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:47:49,691 INFO L87 Difference]: Start difference. First operand 64031 states and 291905 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:50,861 INFO L93 Difference]: Finished difference Result 104161 states and 476350 transitions. [2022-01-18 12:47:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:47:50,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 12:47:50,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:51,326 INFO L225 Difference]: With dead ends: 104161 [2022-01-18 12:47:51,326 INFO L226 Difference]: Without dead ends: 104161 [2022-01-18 12:47:51,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:47:51,327 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 212 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:51,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 523 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104161 states. [2022-01-18 12:47:53,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104161 to 59019. [2022-01-18 12:47:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59019 states, 59018 states have (on average 4.546002914365109) internal successors, (268296), 59018 states have internal predecessors, (268296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59019 states to 59019 states and 268296 transitions. [2022-01-18 12:47:53,843 INFO L78 Accepts]: Start accepts. Automaton has 59019 states and 268296 transitions. Word has length 103 [2022-01-18 12:47:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:53,843 INFO L470 AbstractCegarLoop]: Abstraction has 59019 states and 268296 transitions. [2022-01-18 12:47:53,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 59019 states and 268296 transitions. [2022-01-18 12:47:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 12:47:53,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:53,988 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] [2022-01-18 12:47:53,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 12:47:53,988 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:53,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1462318488, now seen corresponding path program 2 times [2022-01-18 12:47:53,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:53,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518759706] [2022-01-18 12:47:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:53,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:54,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:54,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518759706] [2022-01-18 12:47:54,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518759706] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:47:54,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955772377] [2022-01-18 12:47:54,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:47:54,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:47:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:47:54,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:47:54,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 12:47:54,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:47:54,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:47:54,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 12:47:54,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:47:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:54,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:47:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:54,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955772377] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:47:54,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:47:54,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-18 12:47:54,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293032032] [2022-01-18 12:47:54,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:47:54,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:47:54,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:54,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:47:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:47:54,463 INFO L87 Difference]: Start difference. First operand 59019 states and 268296 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:55,519 INFO L93 Difference]: Finished difference Result 84164 states and 383640 transitions. [2022-01-18 12:47:55,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 12:47:55,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 12:47:55,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:47:55,873 INFO L225 Difference]: With dead ends: 84164 [2022-01-18 12:47:55,873 INFO L226 Difference]: Without dead ends: 84164 [2022-01-18 12:47:55,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:47:55,874 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 296 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:47:55,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 744 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:47:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84164 states. [2022-01-18 12:47:57,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84164 to 48618. [2022-01-18 12:47:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48618 states, 48617 states have (on average 4.567846638007281) internal successors, (222075), 48617 states have internal predecessors, (222075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48618 states to 48618 states and 222075 transitions. [2022-01-18 12:47:57,554 INFO L78 Accepts]: Start accepts. Automaton has 48618 states and 222075 transitions. Word has length 103 [2022-01-18 12:47:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:47:57,555 INFO L470 AbstractCegarLoop]: Abstraction has 48618 states and 222075 transitions. [2022-01-18 12:47:57,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 48618 states and 222075 transitions. [2022-01-18 12:47:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-18 12:47:57,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:47:57,661 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] [2022-01-18 12:47:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 12:47:57,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:47:57,861 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:47:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:47:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1358209140, now seen corresponding path program 1 times [2022-01-18 12:47:57,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:47:57,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969183492] [2022-01-18 12:47:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:57,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:47:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:47:57,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:47:57,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969183492] [2022-01-18 12:47:57,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969183492] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:47:57,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771530133] [2022-01-18 12:47:57,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:47:57,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:47:57,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:47:57,947 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:47:57,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 12:47:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:47:58,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 12:47:58,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:47:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:58,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:47:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:47:58,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771530133] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:47:58,397 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:47:58,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-01-18 12:47:58,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97791804] [2022-01-18 12:47:58,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:47:58,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 12:47:58,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:47:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 12:47:58,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:47:58,399 INFO L87 Difference]: Start difference. First operand 48618 states and 222075 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:47:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:47:59,784 INFO L93 Difference]: Finished difference Result 140261 states and 633845 transitions. [2022-01-18 12:47:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:47:59,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-18 12:47:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:48:00,907 INFO L225 Difference]: With dead ends: 140261 [2022-01-18 12:48:00,907 INFO L226 Difference]: Without dead ends: 132800 [2022-01-18 12:48:00,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:48:00,908 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 242 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:48:00,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 867 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:48:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132800 states. [2022-01-18 12:48:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132800 to 122554. [2022-01-18 12:48:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122554 states, 122553 states have (on average 4.562670844450972) internal successors, (559169), 122553 states have internal predecessors, (559169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:48:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122554 states to 122554 states and 559169 transitions. [2022-01-18 12:48:05,093 INFO L78 Accepts]: Start accepts. Automaton has 122554 states and 559169 transitions. Word has length 108 [2022-01-18 12:48:05,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:48:05,093 INFO L470 AbstractCegarLoop]: Abstraction has 122554 states and 559169 transitions. [2022-01-18 12:48:05,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:48:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 122554 states and 559169 transitions. [2022-01-18 12:48:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-18 12:48:05,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:48:05,490 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] [2022-01-18 12:48:05,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 12:48:05,691 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,SelfDestructingSolverStorable23 [2022-01-18 12:48:05,691 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:48:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:48:05,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1794452218, now seen corresponding path program 2 times [2022-01-18 12:48:05,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:48:05,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205980322] [2022-01-18 12:48:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:48:05,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:48:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:48:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:48:05,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:48:05,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205980322] [2022-01-18 12:48:05,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205980322] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:48:05,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999232270] [2022-01-18 12:48:05,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:48:05,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:48:05,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:48:05,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:48:05,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 12:48:05,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:48:05,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:48:05,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 12:48:05,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:48:06,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:48:06,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:48:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:48:06,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999232270] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:48:06,379 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:48:06,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-01-18 12:48:06,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652706577] [2022-01-18 12:48:06,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:48:06,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 12:48:06,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:48:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 12:48:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:48:06,380 INFO L87 Difference]: Start difference. First operand 122554 states and 559169 transitions. Second operand has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:48:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:48:09,642 INFO L93 Difference]: Finished difference Result 274034 states and 1244126 transitions. [2022-01-18 12:48:09,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:48:09,643 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-18 12:48:09,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:48:11,460 INFO L225 Difference]: With dead ends: 274034 [2022-01-18 12:48:11,460 INFO L226 Difference]: Without dead ends: 266006 [2022-01-18 12:48:11,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:48:11,461 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 421 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:48:11,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1460 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:48:12,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266006 states. [2022-01-18 12:48:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266006 to 165829. [2022-01-18 12:48:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165829 states, 165828 states have (on average 4.580318160986082) internal successors, (759545), 165828 states have internal predecessors, (759545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:48:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165829 states to 165829 states and 759545 transitions. [2022-01-18 12:48:18,939 INFO L78 Accepts]: Start accepts. Automaton has 165829 states and 759545 transitions. Word has length 108 [2022-01-18 12:48:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:48:18,939 INFO L470 AbstractCegarLoop]: Abstraction has 165829 states and 759545 transitions. [2022-01-18 12:48:18,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:48:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 165829 states and 759545 transitions. [2022-01-18 12:48:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-18 12:48:19,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:48:19,416 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] [2022-01-18 12:48:19,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 12:48:19,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:48:19,616 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:48:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:48:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash -644865062, now seen corresponding path program 3 times [2022-01-18 12:48:19,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:48:19,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934548698] [2022-01-18 12:48:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:48:19,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:48:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:48:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:48:19,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:48:19,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934548698] [2022-01-18 12:48:19,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934548698] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:48:19,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661902463] [2022-01-18 12:48:19,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:48:19,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:48:19,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:48:19,705 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:48:19,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 12:48:19,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-18 12:48:19,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:48:19,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 12:48:19,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:48:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:48:20,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:48:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:48:20,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661902463] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:48:20,289 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:48:20,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-01-18 12:48:20,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763548252] [2022-01-18 12:48:20,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:48:20,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 12:48:20,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:48:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 12:48:20,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-01-18 12:48:20,291 INFO L87 Difference]: Start difference. First operand 165829 states and 759545 transitions. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:49:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:49:07,958 INFO L93 Difference]: Finished difference Result 1749100 states and 7999941 transitions. [2022-01-18 12:49:07,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-01-18 12:49:07,959 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-18 12:49:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:49:25,020 INFO L225 Difference]: With dead ends: 1749100 [2022-01-18 12:49:25,020 INFO L226 Difference]: Without dead ends: 1695427 [2022-01-18 12:49:25,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1212 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 510 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118629 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=19581, Invalid=242051, Unknown=0, NotChecked=0, Total=261632 [2022-01-18 12:49:25,039 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 3758 mSDsluCounter, 18816 mSDsCounter, 0 mSdLazyCounter, 9268 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 17987 SdHoareTripleChecker+Invalid, 9452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 9268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-01-18 12:49:25,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3758 Valid, 17987 Invalid, 9452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 9268 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-01-18 12:49:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695427 states. [2022-01-18 12:50:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695427 to 579945. [2022-01-18 12:50:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579945 states, 579944 states have (on average 4.729810119597754) internal successors, (2743025), 579944 states have internal predecessors, (2743025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:50:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579945 states to 579945 states and 2743025 transitions. [2022-01-18 12:50:34,775 INFO L78 Accepts]: Start accepts. Automaton has 579945 states and 2743025 transitions. Word has length 113 [2022-01-18 12:50:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:50:34,775 INFO L470 AbstractCegarLoop]: Abstraction has 579945 states and 2743025 transitions. [2022-01-18 12:50:34,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:50:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 579945 states and 2743025 transitions. [2022-01-18 12:50:39,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-18 12:50:39,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:50:39,248 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] [2022-01-18 12:50:39,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 12:50:39,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:50:39,464 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:50:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:50:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1831613416, now seen corresponding path program 4 times [2022-01-18 12:50:39,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:50:39,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409977114] [2022-01-18 12:50:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:50:39,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:50:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:50:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:50:39,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:50:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409977114] [2022-01-18 12:50:39,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409977114] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:50:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998759351] [2022-01-18 12:50:39,600 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:50:39,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:50:39,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:50:39,601 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:50:39,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 12:50:39,719 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:50:39,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:50:39,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 12:50:39,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:50:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:50:39,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:50:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:50:40,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998759351] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:50:40,168 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:50:40,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-18 12:50:40,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282063527] [2022-01-18 12:50:40,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:50:40,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 12:50:40,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:50:40,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 12:50:40,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:50:40,169 INFO L87 Difference]: Start difference. First operand 579945 states and 2743025 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)