/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:52:19,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:52:19,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:52:19,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:52:19,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:52:19,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:52:19,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:52:19,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:52:19,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:52:19,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:52:19,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:52:19,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:52:19,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:52:19,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:52:19,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:52:19,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:52:19,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:52:19,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:52:19,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:52:19,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:52:19,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:52:19,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:52:19,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:52:19,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:52:19,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:52:19,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:52:19,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:52:19,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:52:19,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:52:19,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:52:19,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:52:19,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:52:19,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:52:19,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:52:19,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:52:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:52:19,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:52:19,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:52:19,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:52:19,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:52:19,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:52:19,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 16:52:19,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:52:19,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:52:19,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:52:19,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:52:19,765 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:52:19,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:52:19,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:52:19,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:52:19,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:52:19,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:52:19,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:52:19,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:52:19,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:52:19,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:52:19,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:52:19,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:52:19,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:52:19,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:52:19,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:52:19,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:52:19,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:52:19,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:52:19,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:52:19,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:52:19,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:52:19,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:52:19,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:52:19,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:52:19,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:52:19,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:52:20,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:52:20,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:52:20,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:52:20,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:52:20,069 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:52:20,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-11 16:52:20,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce155a9c1/302d209f708b4c2db846e146926b9d3b/FLAG8e53d706c [2020-10-11 16:52:20,759 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:52:20,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-11 16:52:20,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce155a9c1/302d209f708b4c2db846e146926b9d3b/FLAG8e53d706c [2020-10-11 16:52:20,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce155a9c1/302d209f708b4c2db846e146926b9d3b [2020-10-11 16:52:20,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:52:20,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:52:20,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:52:20,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:52:20,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:52:20,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:20" (1/1) ... [2020-10-11 16:52:20,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdde4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:20, skipping insertion in model container [2020-10-11 16:52:20,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:20" (1/1) ... [2020-10-11 16:52:20,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:52:21,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:52:21,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:52:21,545 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:52:21,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:52:21,765 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:52:21,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21 WrapperNode [2020-10-11 16:52:21,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:52:21,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:52:21,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:52:21,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:52:21,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:52:21,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:52:21,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:52:21,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:52:21,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... [2020-10-11 16:52:21,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:52:21,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:52:21,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:52:21,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:52:21,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:52:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-11 16:52:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-11 16:52:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-11 16:52:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-11 16:52:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:52:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:52:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:52:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:52:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:52:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:52:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:52:22,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:52:22,005 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:52:22,493 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:52:22,493 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-11 16:52:22,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:22 BoogieIcfgContainer [2020-10-11 16:52:22,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:52:22,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:52:22,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:52:22,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:52:22,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:52:20" (1/3) ... [2020-10-11 16:52:22,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61319cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:22, skipping insertion in model container [2020-10-11 16:52:22,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:21" (2/3) ... [2020-10-11 16:52:22,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61319cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:22, skipping insertion in model container [2020-10-11 16:52:22,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:22" (3/3) ... [2020-10-11 16:52:22,505 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-11 16:52:22,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:52:22,524 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 16:52:22,525 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:52:22,557 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,557 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,558 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,558 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,558 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,559 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,559 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,559 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,560 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,560 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,560 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,561 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,561 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,561 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,561 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,562 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,562 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,562 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,562 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,564 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,567 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,567 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,571 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,571 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,571 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,571 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,573 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,574 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,574 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,574 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,575 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,576 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,576 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,576 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,577 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,577 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,577 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,577 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,578 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,580 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,581 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,582 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,582 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,582 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,582 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,583 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,583 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,583 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,583 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,583 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,584 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,584 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,584 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,584 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,585 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,585 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,585 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,585 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,586 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,586 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,586 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,586 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,587 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,587 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,587 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,588 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,588 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,588 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,588 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,588 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,589 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,589 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,589 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,590 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,590 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,590 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,590 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,590 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,591 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,591 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,591 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,591 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,596 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,596 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,597 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,597 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,597 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,598 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,598 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,599 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,599 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,599 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,599 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,600 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,607 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,608 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,608 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,608 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,608 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,608 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,610 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,611 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:22,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 16:52:22,658 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:52:22,659 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:52:22,659 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:52:22,659 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:52:22,659 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:52:22,659 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:52:22,659 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:52:22,660 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:52:22,677 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-11 16:52:22,747 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-11 16:52:22,747 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:52:22,760 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-11 16:52:22,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 145 transitions, 312 flow [2020-10-11 16:52:22,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 133 transitions, 278 flow [2020-10-11 16:52:22,819 INFO L129 PetriNetUnfolder]: 7/118 cut-off events. [2020-10-11 16:52:22,819 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 16:52:22,820 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:22,821 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:22,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:22,828 INFO L82 PathProgramCache]: Analyzing trace with hash -520625803, now seen corresponding path program 1 times [2020-10-11 16:52:22,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:22,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123966428] [2020-10-11 16:52:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:23,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123966428] [2020-10-11 16:52:23,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:23,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:23,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004586039] [2020-10-11 16:52:23,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:23,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:23,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:23,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:23,294 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 145 [2020-10-11 16:52:23,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 133 transitions, 278 flow. Second operand 3 states. [2020-10-11 16:52:23,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:23,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 145 [2020-10-11 16:52:23,302 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:23,412 INFO L129 PetriNetUnfolder]: 14/254 cut-off events. [2020-10-11 16:52:23,413 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-11 16:52:23,417 INFO L80 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 254 events. 14/254 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 678 event pairs, 0 based on Foata normal form. 23/259 useless extension candidates. Maximal degree in co-relation 240. Up to 14 conditions per place. [2020-10-11 16:52:23,419 INFO L132 encePairwiseOnDemand]: 136/145 looper letters, 3 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2020-10-11 16:52:23,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 130 transitions, 284 flow [2020-10-11 16:52:23,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:23,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2020-10-11 16:52:23,437 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9747126436781609 [2020-10-11 16:52:23,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2020-10-11 16:52:23,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2020-10-11 16:52:23,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:23,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2020-10-11 16:52:23,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:23,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:23,456 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:23,458 INFO L185 Difference]: Start difference. First operand has 129 places, 133 transitions, 278 flow. Second operand 3 states and 424 transitions. [2020-10-11 16:52:23,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 130 transitions, 284 flow [2020-10-11 16:52:23,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 130 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 16:52:23,469 INFO L241 Difference]: Finished difference. Result has 128 places, 130 transitions, 279 flow [2020-10-11 16:52:23,472 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=128, PETRI_TRANSITIONS=130} [2020-10-11 16:52:23,473 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, -1 predicate places. [2020-10-11 16:52:23,473 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 130 transitions, 279 flow [2020-10-11 16:52:23,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:23,473 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:23,474 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:23,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:52:23,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:23,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1537873692, now seen corresponding path program 1 times [2020-10-11 16:52:23,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:23,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524806422] [2020-10-11 16:52:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:23,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524806422] [2020-10-11 16:52:23,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:23,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:23,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505132071] [2020-10-11 16:52:23,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:23,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:23,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:23,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:23,617 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 145 [2020-10-11 16:52:23,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 130 transitions, 279 flow. Second operand 3 states. [2020-10-11 16:52:23,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:23,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 145 [2020-10-11 16:52:23,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:23,683 INFO L129 PetriNetUnfolder]: 16/288 cut-off events. [2020-10-11 16:52:23,684 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:52:23,687 INFO L80 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 288 events. 16/288 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 567 event pairs, 2 based on Foata normal form. 1/270 useless extension candidates. Maximal degree in co-relation 262. Up to 11 conditions per place. [2020-10-11 16:52:23,688 INFO L132 encePairwiseOnDemand]: 142/145 looper letters, 2 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2020-10-11 16:52:23,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2020-10-11 16:52:23,691 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9563218390804598 [2020-10-11 16:52:23,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2020-10-11 16:52:23,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2020-10-11 16:52:23,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:23,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2020-10-11 16:52:23,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:23,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:23,695 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:23,695 INFO L185 Difference]: Start difference. First operand has 128 places, 130 transitions, 279 flow. Second operand 3 states and 416 transitions. [2020-10-11 16:52:23,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:23,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:23,700 INFO L241 Difference]: Finished difference. Result has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:23,700 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2020-10-11 16:52:23,701 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 1 predicate places. [2020-10-11 16:52:23,701 INFO L481 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:23,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:23,701 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:23,701 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:23,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:52:23,702 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:23,702 INFO L82 PathProgramCache]: Analyzing trace with hash 29890135, now seen corresponding path program 1 times [2020-10-11 16:52:23,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:23,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739820899] [2020-10-11 16:52:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:23,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739820899] [2020-10-11 16:52:23,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:23,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 16:52:23,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804682802] [2020-10-11 16:52:23,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 16:52:23,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:23,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 16:52:23,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 16:52:23,894 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:52:23,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 284 flow. Second operand 4 states. [2020-10-11 16:52:23,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:23,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:52:23,895 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:23,972 INFO L129 PetriNetUnfolder]: 21/363 cut-off events. [2020-10-11 16:52:23,973 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:52:23,976 INFO L80 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 363 events. 21/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 950 event pairs, 3 based on Foata normal form. 2/342 useless extension candidates. Maximal degree in co-relation 351. Up to 14 conditions per place. [2020-10-11 16:52:23,978 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 7 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2020-10-11 16:52:23,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 133 transitions, 312 flow [2020-10-11 16:52:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 16:52:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-11 16:52:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2020-10-11 16:52:23,981 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2020-10-11 16:52:23,981 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 540 transitions. [2020-10-11 16:52:23,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 540 transitions. [2020-10-11 16:52:23,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:23,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 540 transitions. [2020-10-11 16:52:23,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-11 16:52:23,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-11 16:52:23,985 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-11 16:52:23,985 INFO L185 Difference]: Start difference. First operand has 130 places, 130 transitions, 284 flow. Second operand 4 states and 540 transitions. [2020-10-11 16:52:23,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 133 transitions, 312 flow [2020-10-11 16:52:23,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 133 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:23,989 INFO L241 Difference]: Finished difference. Result has 134 places, 133 transitions, 310 flow [2020-10-11 16:52:23,990 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2020-10-11 16:52:23,990 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 5 predicate places. [2020-10-11 16:52:23,990 INFO L481 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 310 flow [2020-10-11 16:52:23,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 16:52:23,990 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:23,991 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:52:23,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:52:23,991 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1984788975, now seen corresponding path program 1 times [2020-10-11 16:52:23,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:23,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537904309] [2020-10-11 16:52:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:24,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537904309] [2020-10-11 16:52:24,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706776259] [2020-10-11 16:52:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:52:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:24,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 16:52:24,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 16:52:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:24,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 16:52:24,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-11 16:52:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372834516] [2020-10-11 16:52:24,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:52:24,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:24,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:52:24,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:52:24,608 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:52:24,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 310 flow. Second operand 7 states. [2020-10-11 16:52:24,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:24,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:52:24,610 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:24,738 INFO L129 PetriNetUnfolder]: 32/412 cut-off events. [2020-10-11 16:52:24,738 INFO L130 PetriNetUnfolder]: For 26/38 co-relation queries the response was YES. [2020-10-11 16:52:24,743 INFO L80 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 412 events. 32/412 cut-off events. For 26/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1224 event pairs, 2 based on Foata normal form. 1/386 useless extension candidates. Maximal degree in co-relation 476. Up to 35 conditions per place. [2020-10-11 16:52:24,745 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 10 selfloop transitions, 6 changer transitions 0/140 dead transitions. [2020-10-11 16:52:24,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 140 transitions, 360 flow [2020-10-11 16:52:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 16:52:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 16:52:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 809 transitions. [2020-10-11 16:52:24,749 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9298850574712644 [2020-10-11 16:52:24,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 809 transitions. [2020-10-11 16:52:24,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 809 transitions. [2020-10-11 16:52:24,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:24,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 809 transitions. [2020-10-11 16:52:24,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 16:52:24,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 16:52:24,754 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 16:52:24,754 INFO L185 Difference]: Start difference. First operand has 134 places, 133 transitions, 310 flow. Second operand 6 states and 809 transitions. [2020-10-11 16:52:24,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 140 transitions, 360 flow [2020-10-11 16:52:24,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 140 transitions, 358 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:24,760 INFO L241 Difference]: Finished difference. Result has 141 places, 137 transitions, 349 flow [2020-10-11 16:52:24,760 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2020-10-11 16:52:24,761 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 12 predicate places. [2020-10-11 16:52:24,761 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 349 flow [2020-10-11 16:52:24,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:52:24,761 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:24,761 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:24,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:52:24,976 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1738266616, now seen corresponding path program 1 times [2020-10-11 16:52:24,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:24,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531870019] [2020-10-11 16:52:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:25,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531870019] [2020-10-11 16:52:25,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:25,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:25,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919719634] [2020-10-11 16:52:25,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:25,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:25,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:25,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:25,088 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 145 [2020-10-11 16:52:25,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 349 flow. Second operand 3 states. [2020-10-11 16:52:25,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:25,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 145 [2020-10-11 16:52:25,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:25,162 INFO L129 PetriNetUnfolder]: 16/444 cut-off events. [2020-10-11 16:52:25,162 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2020-10-11 16:52:25,165 INFO L80 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 444 events. 16/444 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1199 event pairs, 1 based on Foata normal form. 10/432 useless extension candidates. Maximal degree in co-relation 499. Up to 15 conditions per place. [2020-10-11 16:52:25,166 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 2 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2020-10-11 16:52:25,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 137 transitions, 361 flow [2020-10-11 16:52:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2020-10-11 16:52:25,169 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2020-10-11 16:52:25,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2020-10-11 16:52:25,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2020-10-11 16:52:25,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:25,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2020-10-11 16:52:25,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:25,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:25,172 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:25,172 INFO L185 Difference]: Start difference. First operand has 141 places, 137 transitions, 349 flow. Second operand 3 states and 410 transitions. [2020-10-11 16:52:25,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 137 transitions, 361 flow [2020-10-11 16:52:25,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 137 transitions, 350 flow, removed 3 selfloop flow, removed 2 redundant places. [2020-10-11 16:52:25,177 INFO L241 Difference]: Finished difference. Result has 141 places, 137 transitions, 346 flow [2020-10-11 16:52:25,177 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2020-10-11 16:52:25,178 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 12 predicate places. [2020-10-11 16:52:25,178 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 346 flow [2020-10-11 16:52:25,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:25,178 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:25,178 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:25,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:52:25,179 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:25,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1569765253, now seen corresponding path program 1 times [2020-10-11 16:52:25,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:25,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949026271] [2020-10-11 16:52:25,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:25,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949026271] [2020-10-11 16:52:25,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:25,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 16:52:25,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319880835] [2020-10-11 16:52:25,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:52:25,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:25,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:52:25,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:52:25,682 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 145 [2020-10-11 16:52:25,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 346 flow. Second operand 7 states. [2020-10-11 16:52:25,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:25,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 145 [2020-10-11 16:52:25,683 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:25,883 INFO L129 PetriNetUnfolder]: 36/655 cut-off events. [2020-10-11 16:52:25,883 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2020-10-11 16:52:25,886 INFO L80 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 655 events. 36/655 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2166 event pairs, 2 based on Foata normal form. 2/629 useless extension candidates. Maximal degree in co-relation 539. Up to 45 conditions per place. [2020-10-11 16:52:25,888 INFO L132 encePairwiseOnDemand]: 134/145 looper letters, 26 selfloop transitions, 13 changer transitions 0/153 dead transitions. [2020-10-11 16:52:25,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 153 transitions, 472 flow [2020-10-11 16:52:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 16:52:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 16:52:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1136 transitions. [2020-10-11 16:52:25,893 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8704980842911877 [2020-10-11 16:52:25,893 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1136 transitions. [2020-10-11 16:52:25,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1136 transitions. [2020-10-11 16:52:25,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:25,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1136 transitions. [2020-10-11 16:52:25,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 16:52:25,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 16:52:25,898 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 16:52:25,898 INFO L185 Difference]: Start difference. First operand has 141 places, 137 transitions, 346 flow. Second operand 9 states and 1136 transitions. [2020-10-11 16:52:25,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 153 transitions, 472 flow [2020-10-11 16:52:25,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 153 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:25,904 INFO L241 Difference]: Finished difference. Result has 153 places, 144 transitions, 428 flow [2020-10-11 16:52:25,904 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=428, PETRI_PLACES=153, PETRI_TRANSITIONS=144} [2020-10-11 16:52:25,905 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 24 predicate places. [2020-10-11 16:52:25,905 INFO L481 AbstractCegarLoop]: Abstraction has has 153 places, 144 transitions, 428 flow [2020-10-11 16:52:25,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:52:25,905 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:25,905 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:25,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 16:52:25,906 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:25,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:25,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1367689617, now seen corresponding path program 1 times [2020-10-11 16:52:25,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:25,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870684470] [2020-10-11 16:52:25,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:26,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870684470] [2020-10-11 16:52:26,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:26,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-11 16:52:26,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851939715] [2020-10-11 16:52:26,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-11 16:52:26,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:26,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-11 16:52:26,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-10-11 16:52:40,555 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 145 [2020-10-11 16:52:40,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 144 transitions, 428 flow. Second operand 20 states. [2020-10-11 16:52:40,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:40,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 145 [2020-10-11 16:52:40,559 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:42,005 INFO L129 PetriNetUnfolder]: 155/1466 cut-off events. [2020-10-11 16:52:42,005 INFO L130 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2020-10-11 16:52:42,011 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2407 conditions, 1466 events. 155/1466 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7466 event pairs, 15 based on Foata normal form. 2/1407 useless extension candidates. Maximal degree in co-relation 1426. Up to 237 conditions per place. [2020-10-11 16:52:42,022 INFO L132 encePairwiseOnDemand]: 123/145 looper letters, 95 selfloop transitions, 25 changer transitions 5/236 dead transitions. [2020-10-11 16:52:42,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 236 transitions, 870 flow [2020-10-11 16:52:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-11 16:52:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-11 16:52:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2186 transitions. [2020-10-11 16:52:42,032 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7537931034482759 [2020-10-11 16:52:42,032 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2186 transitions. [2020-10-11 16:52:42,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2186 transitions. [2020-10-11 16:52:42,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:42,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2186 transitions. [2020-10-11 16:52:42,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-11 16:52:42,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-11 16:52:42,043 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-11 16:52:42,043 INFO L185 Difference]: Start difference. First operand has 153 places, 144 transitions, 428 flow. Second operand 20 states and 2186 transitions. [2020-10-11 16:52:42,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 236 transitions, 870 flow [2020-10-11 16:52:42,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 236 transitions, 864 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 16:52:42,056 INFO L241 Difference]: Finished difference. Result has 183 places, 166 transitions, 593 flow [2020-10-11 16:52:42,057 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=593, PETRI_PLACES=183, PETRI_TRANSITIONS=166} [2020-10-11 16:52:42,057 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 54 predicate places. [2020-10-11 16:52:42,057 INFO L481 AbstractCegarLoop]: Abstraction has has 183 places, 166 transitions, 593 flow [2020-10-11 16:52:42,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-11 16:52:42,058 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:42,058 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 16:52:42,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 16:52:42,058 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:42,059 INFO L82 PathProgramCache]: Analyzing trace with hash 439198491, now seen corresponding path program 2 times [2020-10-11 16:52:42,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:42,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121082700] [2020-10-11 16:52:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:43,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121082700] [2020-10-11 16:52:43,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:43,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-11 16:52:43,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159969422] [2020-10-11 16:52:43,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-11 16:52:43,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:43,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-11 16:52:43,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-10-11 16:53:00,238 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 145 [2020-10-11 16:53:00,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 166 transitions, 593 flow. Second operand 20 states. [2020-10-11 16:53:00,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:00,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 145 [2020-10-11 16:53:00,240 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:01,639 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-11 16:53:02,406 INFO L129 PetriNetUnfolder]: 179/1881 cut-off events. [2020-10-11 16:53:02,406 INFO L130 PetriNetUnfolder]: For 432/432 co-relation queries the response was YES. [2020-10-11 16:53:02,418 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 1881 events. 179/1881 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11104 event pairs, 27 based on Foata normal form. 2/1841 useless extension candidates. Maximal degree in co-relation 1947. Up to 185 conditions per place. [2020-10-11 16:53:02,426 INFO L132 encePairwiseOnDemand]: 124/145 looper letters, 97 selfloop transitions, 37 changer transitions 5/250 dead transitions. [2020-10-11 16:53:02,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 250 transitions, 1163 flow [2020-10-11 16:53:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-11 16:53:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-11 16:53:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2186 transitions. [2020-10-11 16:53:02,436 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7537931034482759 [2020-10-11 16:53:02,436 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2186 transitions. [2020-10-11 16:53:02,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2186 transitions. [2020-10-11 16:53:02,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:02,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2186 transitions. [2020-10-11 16:53:02,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-11 16:53:02,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-11 16:53:02,455 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-11 16:53:02,455 INFO L185 Difference]: Start difference. First operand has 183 places, 166 transitions, 593 flow. Second operand 20 states and 2186 transitions. [2020-10-11 16:53:02,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 250 transitions, 1163 flow [2020-10-11 16:53:02,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 250 transitions, 1158 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 16:53:02,468 INFO L241 Difference]: Finished difference. Result has 207 places, 180 transitions, 795 flow [2020-10-11 16:53:02,469 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=795, PETRI_PLACES=207, PETRI_TRANSITIONS=180} [2020-10-11 16:53:02,469 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 78 predicate places. [2020-10-11 16:53:02,469 INFO L481 AbstractCegarLoop]: Abstraction has has 207 places, 180 transitions, 795 flow [2020-10-11 16:53:02,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-11 16:53:02,470 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:02,470 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:02,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 16:53:02,470 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1752284981, now seen corresponding path program 2 times [2020-10-11 16:53:02,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:02,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996290933] [2020-10-11 16:53:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:02,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996290933] [2020-10-11 16:53:02,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051879108] [2020-10-11 16:53:02,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:53:02,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-11 16:53:02,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-11 16:53:02,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 16:53:02,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 16:53:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:02,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 16:53:02,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-11 16:53:02,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571389433] [2020-10-11 16:53:02,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 16:53:02,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:02,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 16:53:02,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-11 16:53:03,014 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:53:03,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 180 transitions, 795 flow. Second operand 9 states. [2020-10-11 16:53:03,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:03,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:53:03,016 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:03,413 INFO L129 PetriNetUnfolder]: 76/1573 cut-off events. [2020-10-11 16:53:03,413 INFO L130 PetriNetUnfolder]: For 603/603 co-relation queries the response was YES. [2020-10-11 16:53:03,421 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 1573 events. 76/1573 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8861 event pairs, 3 based on Foata normal form. 2/1543 useless extension candidates. Maximal degree in co-relation 1184. Up to 59 conditions per place. [2020-10-11 16:53:03,427 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 14 selfloop transitions, 10 changer transitions 0/188 dead transitions. [2020-10-11 16:53:03,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 188 transitions, 875 flow [2020-10-11 16:53:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 16:53:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 16:53:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1210 transitions. [2020-10-11 16:53:03,431 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9272030651340997 [2020-10-11 16:53:03,431 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1210 transitions. [2020-10-11 16:53:03,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1210 transitions. [2020-10-11 16:53:03,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:03,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1210 transitions. [2020-10-11 16:53:03,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 16:53:03,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 16:53:03,438 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 16:53:03,438 INFO L185 Difference]: Start difference. First operand has 207 places, 180 transitions, 795 flow. Second operand 9 states and 1210 transitions. [2020-10-11 16:53:03,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 188 transitions, 875 flow [2020-10-11 16:53:03,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 188 transitions, 836 flow, removed 10 selfloop flow, removed 10 redundant places. [2020-10-11 16:53:03,447 INFO L241 Difference]: Finished difference. Result has 208 places, 184 transitions, 816 flow [2020-10-11 16:53:03,448 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=816, PETRI_PLACES=208, PETRI_TRANSITIONS=184} [2020-10-11 16:53:03,448 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 79 predicate places. [2020-10-11 16:53:03,448 INFO L481 AbstractCegarLoop]: Abstraction has has 208 places, 184 transitions, 816 flow [2020-10-11 16:53:03,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 16:53:03,448 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:03,449 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:03,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:53:03,664 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:03,665 INFO L82 PathProgramCache]: Analyzing trace with hash 728891237, now seen corresponding path program 1 times [2020-10-11 16:53:03,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:03,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277783546] [2020-10-11 16:53:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:53:03,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:53:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:53:03,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:53:03,787 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:53:03,787 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:53:03,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 16:53:03,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:53:03 BasicIcfg [2020-10-11 16:53:03,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:53:03,926 INFO L168 Benchmark]: Toolchain (without parser) took 42973.88 ms. Allocated memory was 253.2 MB in the beginning and 665.8 MB in the end (delta: 412.6 MB). Free memory was 208.6 MB in the beginning and 554.6 MB in the end (delta: -346.0 MB). Peak memory consumption was 66.6 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:03,927 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:53:03,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.69 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 248.7 MB in the end (delta: -40.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:03,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.97 ms. Allocated memory is still 320.9 MB. Free memory was 248.7 MB in the beginning and 246.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:03,929 INFO L168 Benchmark]: Boogie Preprocessor took 53.24 ms. Allocated memory is still 320.9 MB. Free memory was 246.2 MB in the beginning and 243.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:03,930 INFO L168 Benchmark]: RCFGBuilder took 556.07 ms. Allocated memory is still 320.9 MB. Free memory was 243.7 MB in the beginning and 209.3 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:03,931 INFO L168 Benchmark]: TraceAbstraction took 41427.21 ms. Allocated memory was 320.9 MB in the beginning and 665.8 MB in the end (delta: 345.0 MB). Free memory was 209.3 MB in the beginning and 554.6 MB in the end (delta: -345.3 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:53:03,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 813.69 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 248.7 MB in the end (delta: -40.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 116.97 ms. Allocated memory is still 320.9 MB. Free memory was 248.7 MB in the beginning and 246.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 53.24 ms. Allocated memory is still 320.9 MB. Free memory was 246.2 MB in the beginning and 243.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 556.07 ms. Allocated memory is still 320.9 MB. Free memory was 243.7 MB in the beginning and 209.3 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 41427.21 ms. Allocated memory was 320.9 MB in the beginning and 665.8 MB in the end (delta: 345.0 MB). Free memory was 209.3 MB in the beginning and 554.6 MB in the end (delta: -345.3 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 921]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; VAL [top=0] [L917] 0 static unsigned int arr[(400)]; VAL [arr={6:0}, top=0] [L918] 0 pthread_mutex_t m; VAL [arr={6:0}, m={7:0}, top=0] [L919] 0 _Bool flag=(0); VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1000] 0 pthread_t id1, id2; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1002] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L969] 1 int i; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L970] 1 unsigned int tmp; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L971] 1 i=0 VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L971] COND TRUE 1 i<(400) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L974] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L4] COND FALSE 1 !(!cond) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L941] COND FALSE 1 !(top==(400)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L933] 1 return top; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L948] 1 stack[get_top()] = x VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L925] 1 top++ VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L951] 1 return 0; VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L976] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L978] 1 flag=(1) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L1003] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L985] 2 int i; VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L986] 2 i=0 VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L986] COND TRUE 2 i<(400) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L989] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L933] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L955] COND FALSE 2 !(get_top()==0) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L929] 2 top-- VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L933] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L963] EXPR 2 stack[get_top()] VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L963] 2 return stack[get_top()]; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L991] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L986] 2 i++ VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L986] COND TRUE 2 i<(400) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L989] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L933] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L955] COND TRUE 2 get_top()==0 VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L958] 2 return (-2); VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L991] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L921] 2 __VERIFIER_error() VAL [arr={6:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 41.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 37.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 823 SDtfs, 1298 SDslu, 6717 SDs, 0 SdLazy, 5710 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=816occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 904 ConstructedInterpolants, 0 QuantifiedInterpolants, 683754 SizeOfPredicates, 8 NumberOfNonLiveVariables, 450 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 18/178 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...