/usr/bin/java -Xmx8000000000 -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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:31:52,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:31:52,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:31:52,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:31:52,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:31:52,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:31:52,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:31:52,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:31:52,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:31:52,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:31:52,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:31:52,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:31:52,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:31:52,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:31:52,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:31:52,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:31:52,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:31:52,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:31:52,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:31:52,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:31:52,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:31:52,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:31:52,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:31:52,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:31:52,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:31:52,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:31:52,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:31:52,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:31:52,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:31:52,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:31:52,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:31:52,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:31:52,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:31:52,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:31:52,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:31:52,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:31:52,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:31:52,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:31:52,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:31:52,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:31:52,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:31:52,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 11:31:52,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:31:52,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:31:52,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:31:52,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:31:52,865 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:31:52,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:31:52,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:31:52,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:31:52,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:31:52,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:31:52,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:31:52,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:31:52,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:31:52,869 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:31:52,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:31:52,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:31:52,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:31:52,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:31:52,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:31:52,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:31:52,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:31:52,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:31:52,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:31:52,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:31:52,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:31:52,871 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:31:52,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:31:52,872 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:31:52,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:31:52,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:31:53,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:31:53,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:31:53,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:31:53,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:31:53,209 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:31:53,210 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2020-04-18 11:31:53,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29074c7d/436f62fa7942453bb38636f722f17b67/FLAG2359eee7b [2020-04-18 11:31:53,829 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:31:53,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2020-04-18 11:31:53,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29074c7d/436f62fa7942453bb38636f722f17b67/FLAG2359eee7b [2020-04-18 11:31:54,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29074c7d/436f62fa7942453bb38636f722f17b67 [2020-04-18 11:31:54,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:31:54,144 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:31:54,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:31:54,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:31:54,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:31:54,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ccbffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54, skipping insertion in model container [2020-04-18 11:31:54,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:31:54,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:31:54,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:31:54,745 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:31:54,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:31:54,869 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:31:54,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54 WrapperNode [2020-04-18 11:31:54,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:31:54,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:31:54,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:31:54,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:31:54,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:31:54,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:31:54,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:31:54,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:31:54,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (1/1) ... [2020-04-18 11:31:54,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:31:54,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:31:54,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:31:54,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:31:54,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (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 [2020-04-18 11:31:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-04-18 11:31:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-04-18 11:31:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:31:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 11:31:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:31:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:31:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 11:31:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:31:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:31:55,023 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:31:55,501 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:31:55,502 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-04-18 11:31:55,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:31:55 BoogieIcfgContainer [2020-04-18 11:31:55,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:31:55,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:31:55,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:31:55,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:31:55,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:31:54" (1/3) ... [2020-04-18 11:31:55,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3d8eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:31:55, skipping insertion in model container [2020-04-18 11:31:55,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:31:54" (2/3) ... [2020-04-18 11:31:55,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3d8eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:31:55, skipping insertion in model container [2020-04-18 11:31:55,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:31:55" (3/3) ... [2020-04-18 11:31:55,515 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2020-04-18 11:31:55,526 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:31:55,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:31:55,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:31:55,535 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:31:55,566 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,566 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,566 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,567 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,567 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,567 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,568 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,568 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,568 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,568 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,568 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,569 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,569 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,569 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,569 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,570 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,570 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,570 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,571 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,571 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,571 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,571 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,572 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,572 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,572 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,573 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,573 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,573 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,573 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,574 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,578 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,578 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,578 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,579 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,579 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,579 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,579 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,580 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,580 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,580 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,580 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:31:55,597 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 11:31:55,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:31:55,616 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:31:55,616 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:31:55,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:31:55,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:31:55,617 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:31:55,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:31:55,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:31:55,631 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 87 transitions, 179 flow [2020-04-18 11:31:55,632 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 87 transitions, 179 flow [2020-04-18 11:31:55,677 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-04-18 11:31:55,677 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:31:55,684 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 6/86 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. 0/79 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-04-18 11:31:55,687 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 87 transitions, 179 flow [2020-04-18 11:31:55,711 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-04-18 11:31:55,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:31:55,715 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 6/86 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. 0/79 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-04-18 11:31:55,719 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2208 [2020-04-18 11:31:55,720 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 11:31:57,835 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2663 [2020-04-18 11:31:57,835 INFO L214 etLargeBlockEncoding]: Total number of compositions: 94 [2020-04-18 11:31:57,839 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 17 transitions, 39 flow [2020-04-18 11:31:57,850 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-04-18 11:31:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-04-18 11:31:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:31:57,858 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:31:57,859 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 11:31:57,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:31:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 11055550, now seen corresponding path program 1 times [2020-04-18 11:31:57,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:31:57,873 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1285275317] [2020-04-18 11:31:57,888 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:57,900 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 11:31:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-04-18 11:31:57,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:31:57,902 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:31:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:57,903 INFO L82 PathProgramCache]: Analyzing trace with hash 11055550, now seen corresponding path program 2 times [2020-04-18 11:31:57,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:57,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772537038] [2020-04-18 11:31:57,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772537038] [2020-04-18 11:31:58,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:31:58,079 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,080 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,081 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 11:31:58,081 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,087 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,094 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2020-04-18 11:31:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,098 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-04-18 11:31:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-04-18 11:31:58,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:31:58,099 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1285275317] [2020-04-18 11:31:58,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:31:58,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:31:58,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1285275317] [2020-04-18 11:31:58,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:31:58,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:31:58,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,108 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-04-18 11:31:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,126 INFO L93 Difference]: Finished difference Result 74 states and 151 transitions. [2020-04-18 11:31:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:31:58,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-18 11:31:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:31:58,146 INFO L225 Difference]: With dead ends: 74 [2020-04-18 11:31:58,146 INFO L226 Difference]: Without dead ends: 41 [2020-04-18 11:31:58,148 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-04-18 11:31:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 26. [2020-04-18 11:31:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-04-18 11:31:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 49 transitions. [2020-04-18 11:31:58,217 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 49 transitions. Word has length 4 [2020-04-18 11:31:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:31:58,217 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 49 transitions. [2020-04-18 11:31:58,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:31:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 49 transitions. [2020-04-18 11:31:58,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 11:31:58,218 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:31:58,218 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 11:31:58,219 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:31:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,219 INFO L82 PathProgramCache]: Analyzing trace with hash 342711158, now seen corresponding path program 1 times [2020-04-18 11:31:58,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:31:58,220 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1087663293] [2020-04-18 11:31:58,222 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,222 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 11:31:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 11:31:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 11:31:58,224 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:31:58,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash 342711158, now seen corresponding path program 2 times [2020-04-18 11:31:58,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659734707] [2020-04-18 11:31:58,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659734707] [2020-04-18 11:31:58,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 11:31:58,306 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,306 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,307 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 11:31:58,307 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,310 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,311 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2020-04-18 11:31:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,312 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 11:31:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 11:31:58,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:31:58,313 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1087663293] [2020-04-18 11:31:58,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:31:58,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 11:31:58,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1087663293] [2020-04-18 11:31:58,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:31:58,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:31:58,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,315 INFO L87 Difference]: Start difference. First operand 26 states and 49 transitions. Second operand 3 states. [2020-04-18 11:31:58,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,331 INFO L93 Difference]: Finished difference Result 21 states and 38 transitions. [2020-04-18 11:31:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:31:58,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-04-18 11:31:58,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:31:58,332 INFO L225 Difference]: With dead ends: 21 [2020-04-18 11:31:58,332 INFO L226 Difference]: Without dead ends: 21 [2020-04-18 11:31:58,333 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-04-18 11:31:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-04-18 11:31:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-04-18 11:31:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 38 transitions. [2020-04-18 11:31:58,340 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 38 transitions. Word has length 5 [2020-04-18 11:31:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:31:58,341 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 38 transitions. [2020-04-18 11:31:58,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:31:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 38 transitions. [2020-04-18 11:31:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:31:58,342 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:31:58,342 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:31:58,343 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:31:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1391157156, now seen corresponding path program 1 times [2020-04-18 11:31:58,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:31:58,344 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1446982460] [2020-04-18 11:31:58,345 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,345 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 19 transitions. [2020-04-18 11:31:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 11:31:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:31:58,346 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:31:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1356294096, now seen corresponding path program 2 times [2020-04-18 11:31:58,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198229303] [2020-04-18 11:31:58,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198229303] [2020-04-18 11:31:58,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:31:58,379 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,380 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,381 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2020-04-18 11:31:58,382 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,388 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,389 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-04-18 11:31:58,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,392 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-04-18 11:31:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-04-18 11:31:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:31:58,392 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:31:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1391157156, now seen corresponding path program 3 times [2020-04-18 11:31:58,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244553338] [2020-04-18 11:31:58,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244553338] [2020-04-18 11:31:58,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:31:58,463 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,466 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,467 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2020-04-18 11:31:58,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,478 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:31:58,479 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand 3 states. [2020-04-18 11:31:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,487 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-04-18 11:31:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-04-18 11:31:58,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:31:58,488 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1446982460] [2020-04-18 11:31:58,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:31:58,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:31:58,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1446982460] [2020-04-18 11:31:58,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:31:58,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:31:58,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:31:58,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:31:58,492 INFO L87 Difference]: Start difference. First operand 21 states and 38 transitions. Second operand 4 states. [2020-04-18 11:31:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,509 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2020-04-18 11:31:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 11:31:58,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-04-18 11:31:58,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:31:58,511 INFO L225 Difference]: With dead ends: 37 [2020-04-18 11:31:58,511 INFO L226 Difference]: Without dead ends: 32 [2020-04-18 11:31:58,511 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:31:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-04-18 11:31:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 21. [2020-04-18 11:31:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-04-18 11:31:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 33 transitions. [2020-04-18 11:31:58,519 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 33 transitions. Word has length 7 [2020-04-18 11:31:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:31:58,519 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 33 transitions. [2020-04-18 11:31:58,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:31:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2020-04-18 11:31:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 11:31:58,520 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:31:58,520 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:31:58,520 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:31:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash 570241712, now seen corresponding path program 1 times [2020-04-18 11:31:58,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:31:58,523 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1151951331] [2020-04-18 11:31:58,523 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,525 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 26 transitions. [2020-04-18 11:31:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-04-18 11:31:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 11:31:58,527 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:31:58,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,528 INFO L82 PathProgramCache]: Analyzing trace with hash 571143032, now seen corresponding path program 2 times [2020-04-18 11:31:58,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736222690] [2020-04-18 11:31:58,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736222690] [2020-04-18 11:31:58,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:31:58,592 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,593 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,594 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 14 transitions. [2020-04-18 11:31:58,594 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,598 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:31:58,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:31:58,600 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-04-18 11:31:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,604 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-04-18 11:31:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2020-04-18 11:31:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 11:31:58,604 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:31:58,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,605 INFO L82 PathProgramCache]: Analyzing trace with hash 570241712, now seen corresponding path program 3 times [2020-04-18 11:31:58,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422748589] [2020-04-18 11:31:58,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:31:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:31:58,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422748589] [2020-04-18 11:31:58,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:31:58,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:31:58,679 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:31:58,680 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:31:58,681 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-04-18 11:31:58,681 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:31:58,695 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:31:58,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:31:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:31:58,696 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand 5 states. [2020-04-18 11:31:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:31:58,718 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-04-18 11:31:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2020-04-18 11:31:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 11:31:58,719 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:31:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:31:58,719 INFO L82 PathProgramCache]: Analyzing trace with hash 561679202, now seen corresponding path program 4 times [2020-04-18 11:31:58,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:31:58,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774126399] [2020-04-18 11:31:58,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:31:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:31:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:31:58,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:31:58,789 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:31:58,789 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:31:58,790 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 11:31:58,794 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [320] [320] L674-->BCSP_PnpStopEXIT: Formula: (and (= |BCSP_PnpStopThread1of1ForFork0_#res.base_Out-1392617282| 0) (= ~stopped~0_Out-1392617282 1) (= BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond_Out-1392617282 |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond_In-1392617282|) (not (= BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond_Out-1392617282 0)) (= 0 |BCSP_PnpStopThread1of1ForFork0_#res.offset_Out-1392617282|)) InVars {BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond=|BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond_In-1392617282|} OutVars{BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond=BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond_Out-1392617282, BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond=|BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond_In-1392617282|, BCSP_PnpStopThread1of1ForFork0_#res.base=|BCSP_PnpStopThread1of1ForFork0_#res.base_Out-1392617282|, ~stopped~0=~stopped~0_Out-1392617282, BCSP_PnpStopThread1of1ForFork0_#res.offset=|BCSP_PnpStopThread1of1ForFork0_#res.offset_Out-1392617282|} AuxVars[] AssignedVars[BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond, BCSP_PnpStopThread1of1ForFork0_#res.base, ~stopped~0, BCSP_PnpStopThread1of1ForFork0_#res.offset] because there is no mapped edge [2020-04-18 11:31:58,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:31:58 BasicIcfg [2020-04-18 11:31:58,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:31:58,828 INFO L168 Benchmark]: Toolchain (without parser) took 4697.06 ms. Allocated memory was 143.1 MB in the beginning and 253.2 MB in the end (delta: 110.1 MB). Free memory was 98.4 MB in the beginning and 171.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,829 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.15 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 96.5 MB in the beginning and 156.0 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.78 ms. Allocated memory is still 199.8 MB. Free memory was 156.0 MB in the beginning and 153.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,831 INFO L168 Benchmark]: Boogie Preprocessor took 25.62 ms. Allocated memory is still 199.8 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,832 INFO L168 Benchmark]: RCFGBuilder took 557.34 ms. Allocated memory is still 199.8 MB. Free memory was 152.5 MB in the beginning and 126.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,833 INFO L168 Benchmark]: TraceAbstraction took 3315.47 ms. Allocated memory was 199.8 MB in the beginning and 253.2 MB in the end (delta: 53.5 MB). Free memory was 126.5 MB in the beginning and 171.8 MB in the end (delta: -45.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2020-04-18 11:31:58,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.15 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 96.5 MB in the beginning and 156.0 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.78 ms. Allocated memory is still 199.8 MB. Free memory was 156.0 MB in the beginning and 153.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.62 ms. Allocated memory is still 199.8 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 557.34 ms. Allocated memory is still 199.8 MB. Free memory was 152.5 MB in the beginning and 126.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3315.47 ms. Allocated memory was 199.8 MB in the beginning and 253.2 MB in the end (delta: 53.5 MB). Free memory was 126.5 MB in the beginning and 171.8 MB in the end (delta: -45.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 85 ProgramPointsBefore, 18 ProgramPointsAfterwards, 87 TransitionsBefore, 17 TransitionsAfterwards, 2208 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 3 ChoiceCompositions, 1351 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2663 CheckedPairsTotal, 94 TotalNumberOfCompositions - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L686] 0 volatile int stoppingFlag; [L687] 0 volatile int pendingIo; [L688] 0 volatile int stoppingEvent; [L689] 0 volatile int stopped; [L729] 0 pthread_t t; [L730] 0 pendingIo = 1 [L731] 0 stoppingFlag = 0 [L732] 0 stoppingEvent = 0 [L733] 0 stopped = 0 [L734] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L713] 0 int status; [L691] COND FALSE 0 !(\read(stoppingFlag)) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L722] 1 stoppingFlag = 1 [L706] 1 int pending; [L700] 1 pendingIo-- [L701] 1 int tmp = pendingIo; [L703] 1 return tmp; [L707] 1 pending = dec() [L694] 0 pendingIo = pendingIo + 1 [L696] 0 return 0; [L708] COND TRUE 1 pending == 0 [L709] 1 stoppingEvent = 1 [L714] 0 status = BCSP_IoIncrement() [L715] COND TRUE 0 status == 0 [L678] COND TRUE 0 !(cond) [L679] 0 __VERIFIER_error() VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 54 SDtfs, 28 SDslu, 39 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...