/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-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:49:27,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:49:27,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:49:27,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:49:27,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:49:27,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:49:27,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:49:27,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:49:27,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:49:27,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:49:27,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:49:27,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:49:27,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:49:27,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:49:27,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:49:27,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:49:27,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:49:27,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:49:27,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:49:27,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:49:27,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:49:27,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:49:27,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:49:27,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:49:27,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:49:27,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:49:27,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:49:27,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:49:27,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:49:27,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:49:27,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:49:27,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:49:27,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:49:27,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:49:27,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:49:27,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:49:27,817 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 18:49:27,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:49:27,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:49:27,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:49:27,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:49:27,842 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:49:27,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:49:27,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:49:27,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:49:27,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:49:27,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:49:27,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:49:27,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:49:27,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:49:27,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:49:27,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:49:27,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:49:27,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:49:27,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:49:27,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:49:27,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:49:27,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:49:27,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:49:27,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:49:27,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:49:27,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:49:27,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:49:27,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:49:27,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:49:27,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:49:27,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:49:28,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:49:28,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:49:28,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:49:28,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:49:28,160 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:49:28,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-10-11 18:49:28,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e389cc1/c0e67f6491684ad38606297d250d1d85/FLAGc1045dc72 [2020-10-11 18:49:28,742 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:49:28,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-10-11 18:49:28,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e389cc1/c0e67f6491684ad38606297d250d1d85/FLAGc1045dc72 [2020-10-11 18:49:29,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e389cc1/c0e67f6491684ad38606297d250d1d85 [2020-10-11 18:49:29,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:49:29,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:49:29,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:49:29,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:49:29,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:49:29,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a469e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29, skipping insertion in model container [2020-10-11 18:49:29,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:49:29,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:49:29,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:49:29,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:49:29,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:49:29,815 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:49:29,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29 WrapperNode [2020-10-11 18:49:29,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:49:29,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:49:29,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:49:29,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:49:29,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:49:29,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:49:29,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:49:29,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:49:29,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (1/1) ... [2020-10-11 18:49:29,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:49:29,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:49:29,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:49:29,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:49:29,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (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 18:49:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-10-11 18:49:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-10-11 18:49:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:49:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:49:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:49:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:49:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:49:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:49:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:49:29,954 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 18:49:30,358 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:49:30,358 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-11 18:49:30,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:49:30 BoogieIcfgContainer [2020-10-11 18:49:30,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:49:30,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:49:30,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:49:30,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:49:30,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:49:29" (1/3) ... [2020-10-11 18:49:30,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98545b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:49:30, skipping insertion in model container [2020-10-11 18:49:30,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:49:29" (2/3) ... [2020-10-11 18:49:30,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98545b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:49:30, skipping insertion in model container [2020-10-11 18:49:30,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:49:30" (3/3) ... [2020-10-11 18:49:30,369 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2020-10-11 18:49:30,382 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:49:30,390 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:49:30,391 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:49:30,416 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,416 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,416 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,417 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,417 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,417 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,418 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,418 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,418 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,418 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,419 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,419 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,419 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,419 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,420 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,420 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,420 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,420 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,421 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,421 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,421 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,421 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,422 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,422 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,422 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,423 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,423 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,423 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,423 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,424 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,427 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,427 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,428 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,428 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,428 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,428 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,429 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,429 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,429 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,429 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,430 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:49:30,447 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 18:49:30,468 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:49:30,468 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:49:30,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:49:30,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:49:30,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:49:30,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:49:30,469 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:49:30,469 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:49:30,483 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-10-11 18:49:30,526 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-10-11 18:49:30,527 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:30,533 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-10-11 18:49:30,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 86 transitions, 177 flow [2020-10-11 18:49:30,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 85 transitions, 173 flow [2020-10-11 18:49:30,558 INFO L129 PetriNetUnfolder]: 5/66 cut-off events. [2020-10-11 18:49:30,558 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:30,558 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:30,560 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] [2020-10-11 18:49:30,560 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1051248567, now seen corresponding path program 1 times [2020-10-11 18:49:30,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:30,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544145445] [2020-10-11 18:49:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:30,913 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 18:49:30,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544145445] [2020-10-11 18:49:30,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:30,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 18:49:30,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218518431] [2020-10-11 18:49:30,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 18:49:30,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:30,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 18:49:30,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 18:49:31,052 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 86 [2020-10-11 18:49:31,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 85 transitions, 173 flow. Second operand 5 states. [2020-10-11 18:49:31,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:31,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 86 [2020-10-11 18:49:31,056 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:31,204 INFO L129 PetriNetUnfolder]: 8/144 cut-off events. [2020-10-11 18:49:31,204 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:49:31,209 INFO L80 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 144 events. 8/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 365 event pairs, 0 based on Foata normal form. 5/140 useless extension candidates. Maximal degree in co-relation 145. Up to 6 conditions per place. [2020-10-11 18:49:31,212 INFO L132 encePairwiseOnDemand]: 78/86 looper letters, 9 selfloop transitions, 7 changer transitions 1/92 dead transitions. [2020-10-11 18:49:31,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 221 flow [2020-10-11 18:49:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:49:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:49:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 631 transitions. [2020-10-11 18:49:31,243 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9171511627906976 [2020-10-11 18:49:31,244 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 631 transitions. [2020-10-11 18:49:31,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 631 transitions. [2020-10-11 18:49:31,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:31,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 631 transitions. [2020-10-11 18:49:31,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:49:31,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:49:31,297 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:49:31,299 INFO L185 Difference]: Start difference. First operand has 83 places, 85 transitions, 173 flow. Second operand 8 states and 631 transitions. [2020-10-11 18:49:31,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 221 flow [2020-10-11 18:49:31,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 92 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 18:49:31,316 INFO L241 Difference]: Finished difference. Result has 93 places, 88 transitions, 211 flow [2020-10-11 18:49:31,319 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=211, PETRI_PLACES=93, PETRI_TRANSITIONS=88} [2020-10-11 18:49:31,320 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 10 predicate places. [2020-10-11 18:49:31,320 INFO L481 AbstractCegarLoop]: Abstraction has has 93 places, 88 transitions, 211 flow [2020-10-11 18:49:31,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 18:49:31,321 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:31,321 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] [2020-10-11 18:49:31,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:49:31,322 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:31,322 INFO L82 PathProgramCache]: Analyzing trace with hash -107574420, now seen corresponding path program 1 times [2020-10-11 18:49:31,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:31,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978864060] [2020-10-11 18:49:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:31,417 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 18:49:31,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978864060] [2020-10-11 18:49:31,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:31,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 18:49:31,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171950424] [2020-10-11 18:49:31,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 18:49:31,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:31,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 18:49:31,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 18:49:31,519 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 86 [2020-10-11 18:49:31,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 211 flow. Second operand 5 states. [2020-10-11 18:49:31,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:31,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 86 [2020-10-11 18:49:31,520 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:31,610 INFO L129 PetriNetUnfolder]: 22/260 cut-off events. [2020-10-11 18:49:31,610 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-11 18:49:31,612 INFO L80 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 260 events. 22/260 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1290 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 321. Up to 30 conditions per place. [2020-10-11 18:49:31,613 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 8 selfloop transitions, 5 changer transitions 36/100 dead transitions. [2020-10-11 18:49:31,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 279 flow [2020-10-11 18:49:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:49:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:49:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 616 transitions. [2020-10-11 18:49:31,617 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8953488372093024 [2020-10-11 18:49:31,617 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 616 transitions. [2020-10-11 18:49:31,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 616 transitions. [2020-10-11 18:49:31,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:31,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 616 transitions. [2020-10-11 18:49:31,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:49:31,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:49:31,622 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:49:31,623 INFO L185 Difference]: Start difference. First operand has 93 places, 88 transitions, 211 flow. Second operand 8 states and 616 transitions. [2020-10-11 18:49:31,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 279 flow [2020-10-11 18:49:31,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 100 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 18:49:31,627 INFO L241 Difference]: Finished difference. Result has 105 places, 63 transitions, 175 flow [2020-10-11 18:49:31,628 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=175, PETRI_PLACES=105, PETRI_TRANSITIONS=63} [2020-10-11 18:49:31,628 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 22 predicate places. [2020-10-11 18:49:31,628 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 63 transitions, 175 flow [2020-10-11 18:49:31,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 18:49:31,629 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:31,629 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] [2020-10-11 18:49:31,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:49:31,629 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:31,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:31,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1133340380, now seen corresponding path program 1 times [2020-10-11 18:49:31,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:31,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736065748] [2020-10-11 18:49:31,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:31,722 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 18:49:31,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736065748] [2020-10-11 18:49:31,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:31,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:49:31,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071436356] [2020-10-11 18:49:31,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:49:31,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:31,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:49:31,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:49:31,959 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 86 [2020-10-11 18:49:31,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 63 transitions, 175 flow. Second operand 7 states. [2020-10-11 18:49:31,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:31,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 86 [2020-10-11 18:49:31,960 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:32,032 INFO L129 PetriNetUnfolder]: 10/131 cut-off events. [2020-10-11 18:49:32,032 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2020-10-11 18:49:32,033 INFO L80 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 131 events. 10/131 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 442 event pairs, 3 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 229. Up to 16 conditions per place. [2020-10-11 18:49:32,034 INFO L132 encePairwiseOnDemand]: 80/86 looper letters, 12 selfloop transitions, 6 changer transitions 5/69 dead transitions. [2020-10-11 18:49:32,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 69 transitions, 229 flow [2020-10-11 18:49:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:49:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:49:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 515 transitions. [2020-10-11 18:49:32,037 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8554817275747508 [2020-10-11 18:49:32,037 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 515 transitions. [2020-10-11 18:49:32,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 515 transitions. [2020-10-11 18:49:32,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:32,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 515 transitions. [2020-10-11 18:49:32,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:49:32,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:49:32,042 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:49:32,042 INFO L185 Difference]: Start difference. First operand has 105 places, 63 transitions, 175 flow. Second operand 7 states and 515 transitions. [2020-10-11 18:49:32,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 69 transitions, 229 flow [2020-10-11 18:49:32,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 213 flow, removed 5 selfloop flow, removed 7 redundant places. [2020-10-11 18:49:32,047 INFO L241 Difference]: Finished difference. Result has 82 places, 61 transitions, 177 flow [2020-10-11 18:49:32,048 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=177, PETRI_PLACES=82, PETRI_TRANSITIONS=61} [2020-10-11 18:49:32,048 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -1 predicate places. [2020-10-11 18:49:32,048 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 177 flow [2020-10-11 18:49:32,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:49:32,049 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:32,049 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] [2020-10-11 18:49:32,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:49:32,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:32,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:32,050 INFO L82 PathProgramCache]: Analyzing trace with hash -30657750, now seen corresponding path program 2 times [2020-10-11 18:49:32,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:32,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802701855] [2020-10-11 18:49:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:32,145 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 18:49:32,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802701855] [2020-10-11 18:49:32,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:32,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:49:32,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344017714] [2020-10-11 18:49:32,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:49:32,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:32,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:49:32,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:49:32,387 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 86 [2020-10-11 18:49:32,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 177 flow. Second operand 8 states. [2020-10-11 18:49:32,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:32,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 86 [2020-10-11 18:49:32,389 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:32,494 INFO L129 PetriNetUnfolder]: 1/83 cut-off events. [2020-10-11 18:49:32,494 INFO L130 PetriNetUnfolder]: For 23/28 co-relation queries the response was YES. [2020-10-11 18:49:32,495 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 83 events. 1/83 cut-off events. For 23/28 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 153 event pairs, 0 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-10-11 18:49:32,495 INFO L132 encePairwiseOnDemand]: 78/86 looper letters, 11 selfloop transitions, 2 changer transitions 12/70 dead transitions. [2020-10-11 18:49:32,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 70 transitions, 241 flow [2020-10-11 18:49:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:49:32,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:49:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 636 transitions. [2020-10-11 18:49:32,498 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8217054263565892 [2020-10-11 18:49:32,499 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 636 transitions. [2020-10-11 18:49:32,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 636 transitions. [2020-10-11 18:49:32,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:32,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 636 transitions. [2020-10-11 18:49:32,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:49:32,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:49:32,503 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:49:32,503 INFO L185 Difference]: Start difference. First operand has 82 places, 61 transitions, 177 flow. Second operand 9 states and 636 transitions. [2020-10-11 18:49:32,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 70 transitions, 241 flow [2020-10-11 18:49:32,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 70 transitions, 218 flow, removed 3 selfloop flow, removed 9 redundant places. [2020-10-11 18:49:32,507 INFO L241 Difference]: Finished difference. Result has 84 places, 58 transitions, 153 flow [2020-10-11 18:49:32,507 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=153, PETRI_PLACES=84, PETRI_TRANSITIONS=58} [2020-10-11 18:49:32,508 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2020-10-11 18:49:32,508 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 58 transitions, 153 flow [2020-10-11 18:49:32,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:49:32,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:49:32,508 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] [2020-10-11 18:49:32,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:49:32,509 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:49:32,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:49:32,509 INFO L82 PathProgramCache]: Analyzing trace with hash -408558289, now seen corresponding path program 1 times [2020-10-11 18:49:32,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:49:32,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236053378] [2020-10-11 18:49:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:49:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:49:32,558 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 18:49:32,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236053378] [2020-10-11 18:49:32,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:49:32,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 18:49:32,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390019350] [2020-10-11 18:49:32,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 18:49:32,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:49:32,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 18:49:32,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 18:49:32,675 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 86 [2020-10-11 18:49:32,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 58 transitions, 153 flow. Second operand 5 states. [2020-10-11 18:49:32,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:49:32,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 86 [2020-10-11 18:49:32,676 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:49:32,708 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2020-10-11 18:49:32,709 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 18:49:32,709 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 57 events. 1/57 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 2/59 useless extension candidates. Maximal degree in co-relation 78. Up to 4 conditions per place. [2020-10-11 18:49:32,709 INFO L132 encePairwiseOnDemand]: 81/86 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2020-10-11 18:49:32,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 52 transitions, 153 flow [2020-10-11 18:49:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 18:49:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 18:49:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2020-10-11 18:49:32,712 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8875968992248062 [2020-10-11 18:49:32,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2020-10-11 18:49:32,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2020-10-11 18:49:32,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:49:32,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2020-10-11 18:49:32,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 18:49:32,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 18:49:32,715 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 18:49:32,716 INFO L185 Difference]: Start difference. First operand has 84 places, 58 transitions, 153 flow. Second operand 6 states and 458 transitions. [2020-10-11 18:49:32,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 52 transitions, 153 flow [2020-10-11 18:49:32,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 52 transitions, 129 flow, removed 5 selfloop flow, removed 12 redundant places. [2020-10-11 18:49:32,718 INFO L241 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2020-10-11 18:49:32,718 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2020-10-11 18:49:32,718 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -21 predicate places. [2020-10-11 18:49:32,718 INFO L481 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2020-10-11 18:49:32,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 18:49:32,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:49:32,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:49:32 BasicIcfg [2020-10-11 18:49:32,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:49:32,728 INFO L168 Benchmark]: Toolchain (without parser) took 3674.40 ms. Allocated memory was 250.1 MB in the beginning and 367.5 MB in the end (delta: 117.4 MB). Free memory was 204.6 MB in the beginning and 279.0 MB in the end (delta: -74.4 MB). Peak memory consumption was 43.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,729 INFO L168 Benchmark]: CDTParser took 1.36 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.86 ms. Allocated memory was 250.1 MB in the beginning and 308.3 MB in the end (delta: 58.2 MB). Free memory was 204.6 MB in the beginning and 262.5 MB in the end (delta: -57.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.19 ms. Allocated memory is still 308.3 MB. Free memory was 262.5 MB in the beginning and 260.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,731 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 ms. Allocated memory is still 308.3 MB. Free memory was 260.0 MB in the beginning and 258.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,732 INFO L168 Benchmark]: RCFGBuilder took 467.57 ms. Allocated memory is still 308.3 MB. Free memory was 258.3 MB in the beginning and 231.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,733 INFO L168 Benchmark]: TraceAbstraction took 2363.59 ms. Allocated memory was 308.3 MB in the beginning and 367.5 MB in the end (delta: 59.2 MB). Free memory was 231.0 MB in the beginning and 279.0 MB in the end (delta: -48.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:49:32,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 762.86 ms. Allocated memory was 250.1 MB in the beginning and 308.3 MB in the end (delta: 58.2 MB). Free memory was 204.6 MB in the beginning and 262.5 MB in the end (delta: -57.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.19 ms. Allocated memory is still 308.3 MB. Free memory was 262.5 MB in the beginning and 260.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 23.48 ms. Allocated memory is still 308.3 MB. Free memory was 260.0 MB in the beginning and 258.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 467.57 ms. Allocated memory is still 308.3 MB. Free memory was 258.3 MB in the beginning and 231.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2363.59 ms. Allocated memory was 308.3 MB in the beginning and 367.5 MB in the end (delta: 59.2 MB). Free memory was 231.0 MB in the beginning and 279.0 MB in the end (delta: -48.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 679]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 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: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 113 SDslu, 301 SDs, 0 SdLazy, 308 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=1, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 23726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 correct! Received shutdown request...