/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:53:19,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:53:19,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:53:19,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:53:19,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:53:19,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:53:19,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:53:19,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:53:19,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:53:19,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:53:19,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:53:19,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:53:19,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:53:19,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:53:19,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:53:19,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:53:19,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:53:19,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:53:19,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:53:19,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:53:19,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:53:19,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:53:19,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:53:19,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:53:19,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:53:19,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:53:19,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:53:19,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:53:19,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:53:19,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:53:19,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:53:19,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:53:19,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:53:19,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:53:19,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:53:19,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:53:19,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:53:19,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:53:19,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:53:19,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:53:19,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:53:19,874 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-MCR.epf [2019-12-27 18:53:19,889 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:53:19,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:53:19,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:53:19,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:53:19,891 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:53:19,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:53:19,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:53:19,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:53:19,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:53:19,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:53:19,893 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:53:19,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:53:19,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:53:19,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:53:19,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:53:19,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:53:19,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:19,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:53:19,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:53:19,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:53:19,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:53:19,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:53:19,895 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:53:19,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:53:19,896 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:53:19,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:53:20,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:53:20,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:53:20,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:53:20,189 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:53:20,190 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:53:20,191 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-27 18:53:20,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a67bd5b/68141a69f98c4b72a6ba190772b53ee1/FLAG1ddd7e581 [2019-12-27 18:53:20,817 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:53:20,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-27 18:53:20,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a67bd5b/68141a69f98c4b72a6ba190772b53ee1/FLAG1ddd7e581 [2019-12-27 18:53:21,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a67bd5b/68141a69f98c4b72a6ba190772b53ee1 [2019-12-27 18:53:21,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:53:21,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:53:21,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:21,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:53:21,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:53:21,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f7eb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21, skipping insertion in model container [2019-12-27 18:53:21,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:53:21,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:53:21,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:21,684 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:53:21,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:21,854 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:53:21,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21 WrapperNode [2019-12-27 18:53:21,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:21,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:21,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:53:21,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:53:21,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:21,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:53:21,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:53:21,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:53:21,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:21,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:53:21,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:53:21,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:53:21,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:53:21,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:53:22,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:53:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:53:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:53:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:53:22,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:53:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:53:22,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:53:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:53:22,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:53:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:53:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:53:22,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:53:22,024 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:53:22,400 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:53:22,400 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:53:22,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:22 BoogieIcfgContainer [2019-12-27 18:53:22,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:53:22,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:53:22,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:53:22,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:53:22,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:53:21" (1/3) ... [2019-12-27 18:53:22,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c398b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:22, skipping insertion in model container [2019-12-27 18:53:22,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:21" (2/3) ... [2019-12-27 18:53:22,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c398b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:22, skipping insertion in model container [2019-12-27 18:53:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:22" (3/3) ... [2019-12-27 18:53:22,411 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2019-12-27 18:53:22,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:53:22,421 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:53:22,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:53:22,429 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:53:22,458 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,460 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,461 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,461 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,462 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,462 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,463 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,463 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,463 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,463 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,464 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,465 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,465 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,466 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,466 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,466 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,467 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,467 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,472 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,480 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,480 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,481 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,481 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,483 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,484 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,484 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,484 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:22,508 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:53:22,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:53:22,534 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:53:22,534 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:53:22,534 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:53:22,534 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:53:22,534 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:53:22,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:53:22,535 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:53:22,548 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 18:53:22,550 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:22,601 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:22,601 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:22,608 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:22,612 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:22,634 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:22,634 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:22,635 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:22,640 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:53:22,642 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:53:24,127 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 18:53:24,183 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-12-27 18:53:24,183 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:53:24,187 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:53:24,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:53:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:53:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:53:24,207 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:24,208 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:24,209 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:24,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-12-27 18:53:24,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:24,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690261646] [2019-12-27 18:53:24,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:24,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690261646] [2019-12-27 18:53:24,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:24,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:53:24,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2011409467] [2019-12-27 18:53:24,642 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:24,652 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:24,668 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:53:24,669 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:24,673 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:24,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:24,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:24,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:24,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:24,693 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-27 18:53:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:24,764 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-27 18:53:24,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:24,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 18:53:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:24,782 INFO L225 Difference]: With dead ends: 58 [2019-12-27 18:53:24,782 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:53:24,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:53:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:53:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:53:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-27 18:53:24,823 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-27 18:53:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:24,824 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-27 18:53:24,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:24,824 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-27 18:53:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:53:24,825 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:24,825 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:24,825 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-12-27 18:53:24,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:24,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881121236] [2019-12-27 18:53:24,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:24,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881121236] [2019-12-27 18:53:24,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:24,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:24,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1741173302] [2019-12-27 18:53:24,922 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:24,923 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:24,927 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:53:24,927 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:24,928 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:24,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:24,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:24,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:24,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:24,931 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-27 18:53:24,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:24,994 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-27 18:53:24,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:53:24,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-27 18:53:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:24,996 INFO L225 Difference]: With dead ends: 37 [2019-12-27 18:53:24,996 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 18:53:24,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:24,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 18:53:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-27 18:53:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-27 18:53:25,002 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-27 18:53:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,003 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-27 18:53:25,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-27 18:53:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:25,004 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,004 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,004 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-12-27 18:53:25,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010688443] [2019-12-27 18:53:25,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:25,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010688443] [2019-12-27 18:53:25,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:25,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [718986697] [2019-12-27 18:53:25,053 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,054 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,057 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 18:53:25,057 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,058 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:25,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:25,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:25,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:25,059 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 4 states. [2019-12-27 18:53:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,081 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2019-12-27 18:53:25,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:25,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:53:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,082 INFO L225 Difference]: With dead ends: 35 [2019-12-27 18:53:25,082 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 18:53:25,083 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 18:53:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-12-27 18:53:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2019-12-27 18:53:25,088 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 10 [2019-12-27 18:53:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,088 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2019-12-27 18:53:25,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-12-27 18:53:25,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:25,089 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,089 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,089 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1607961385, now seen corresponding path program 1 times [2019-12-27 18:53:25,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178002466] [2019-12-27 18:53:25,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:25,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178002466] [2019-12-27 18:53:25,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:53:25,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [713513440] [2019-12-27 18:53:25,166 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,167 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,169 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 18:53:25,169 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,213 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:25,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 18:53:25,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 18:53:25,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:25,215 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand 7 states. [2019-12-27 18:53:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,307 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-12-27 18:53:25,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:53:25,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 18:53:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,309 INFO L225 Difference]: With dead ends: 28 [2019-12-27 18:53:25,309 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 18:53:25,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:53:25,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 18:53:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 18:53:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 18:53:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 18:53:25,315 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 18:53:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,316 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 18:53:25,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 18:53:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 18:53:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:25,317 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,317 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,317 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1627425577, now seen corresponding path program 1 times [2019-12-27 18:53:25,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503163898] [2019-12-27 18:53:25,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:25,401 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503163898] [2019-12-27 18:53:25,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:25,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1549223552] [2019-12-27 18:53:25,402 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,404 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,406 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 18:53:25,407 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,407 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:25,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:25,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:25,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:25,408 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 18:53:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,425 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-27 18:53:25,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:25,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:53:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,427 INFO L225 Difference]: With dead ends: 19 [2019-12-27 18:53:25,427 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 18:53:25,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 18:53:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 18:53:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 18:53:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 18:53:25,430 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 18:53:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,430 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 18:53:25,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 18:53:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:25,431 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,431 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,432 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1633797007, now seen corresponding path program 2 times [2019-12-27 18:53:25,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834111550] [2019-12-27 18:53:25,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:25,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834111550] [2019-12-27 18:53:25,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:25,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2020617321] [2019-12-27 18:53:25,509 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,515 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,519 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:53:25,520 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,543 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:25,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:25,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:25,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:25,544 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-12-27 18:53:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,568 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 18:53:25,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:25,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:53:25,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,568 INFO L225 Difference]: With dead ends: 13 [2019-12-27 18:53:25,568 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:53:25,569 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:53:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:53:25,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:53:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:53:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:53:25,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:53:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,570 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:53:25,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:53:25,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:53:25,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:53:25 BasicIcfg [2019-12-27 18:53:25,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:53:25,582 INFO L168 Benchmark]: Toolchain (without parser) took 4433.69 ms. Allocated memory was 136.3 MB in the beginning and 251.7 MB in the end (delta: 115.3 MB). Free memory was 99.6 MB in the beginning and 108.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,582 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:53:25,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.77 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 157.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 200.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,589 INFO L168 Benchmark]: Boogie Preprocessor took 33.18 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,589 INFO L168 Benchmark]: RCFGBuilder took 446.37 ms. Allocated memory is still 200.3 MB. Free memory was 153.9 MB in the beginning and 133.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,592 INFO L168 Benchmark]: TraceAbstraction took 3173.41 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 132.4 MB in the beginning and 108.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:25,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.77 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 157.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 200.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.18 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.37 ms. Allocated memory is still 200.3 MB. Free memory was 153.9 MB in the beginning and 133.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3173.41 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 132.4 MB in the beginning and 108.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 83 SDs, 0 SdLazy, 63 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...