/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/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 17:55:31,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 17:55:31,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 17:55:31,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 17:55:31,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 17:55:31,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 17:55:31,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 17:55:31,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 17:55:31,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 17:55:31,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 17:55:31,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 17:55:31,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 17:55:31,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 17:55:31,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 17:55:31,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 17:55:31,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 17:55:31,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 17:55:31,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 17:55:31,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 17:55:31,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 17:55:31,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 17:55:31,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 17:55:31,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 17:55:31,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 17:55:31,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 17:55:31,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 17:55:31,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 17:55:31,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 17:55:31,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 17:55:31,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 17:55:31,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 17:55:31,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 17:55:31,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 17:55:31,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 17:55:31,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 17:55:31,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 17:55:31,867 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 17:55:31,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 17:55:31,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 17:55:31,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 17:55:31,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 17:55:31,883 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 17:55:31,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 17:55:31,883 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 17:55:31,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 17:55:31,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 17:55:31,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 17:55:31,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 17:55:31,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 17:55:31,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 17:55:31,885 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 17:55:31,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 17:55:31,885 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 17:55:31,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 17:55:31,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 17:55:31,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 17:55:31,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 17:55:31,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 17:55:31,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 17:55:31,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 17:55:31,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 17:55:31,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 17:55:31,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 17:55:31,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 17:55:31,887 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 17:55:31,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 17:55:31,888 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 17:55:31,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 17:55:32,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 17:55:32,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 17:55:32,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 17:55:32,195 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 17:55:32,195 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 17:55:32,196 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2019-12-27 17:55:32,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a5ee9ea/707e0d1704a0451287246a8c29131855/FLAGbe41d8528 [2019-12-27 17:55:32,825 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 17:55:32,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2019-12-27 17:55:32,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a5ee9ea/707e0d1704a0451287246a8c29131855/FLAGbe41d8528 [2019-12-27 17:55:33,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a5ee9ea/707e0d1704a0451287246a8c29131855 [2019-12-27 17:55:33,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 17:55:33,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 17:55:33,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 17:55:33,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 17:55:33,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 17:55:33,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207c4241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33, skipping insertion in model container [2019-12-27 17:55:33,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 17:55:33,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 17:55:33,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 17:55:33,735 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 17:55:33,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 17:55:33,890 INFO L208 MainTranslator]: Completed translation [2019-12-27 17:55:33,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33 WrapperNode [2019-12-27 17:55:33,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 17:55:33,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 17:55:33,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 17:55:33,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 17:55:33,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 17:55:33,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 17:55:33,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 17:55:33,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 17:55:33,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (1/1) ... [2019-12-27 17:55:33,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 17:55:33,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 17:55:33,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 17:55:33,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 17:55:33,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (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 17:55:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 17:55:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 17:55:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 17:55:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 17:55:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 17:55:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 17:55:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 17:55:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 17:55:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 17:55:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 17:55:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 17:55:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 17:55:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 17:55:34,040 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 17:55:34,411 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 17:55:34,411 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 17:55:34,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 05:55:34 BoogieIcfgContainer [2019-12-27 17:55:34,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 17:55:34,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 17:55:34,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 17:55:34,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 17:55:34,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 05:55:33" (1/3) ... [2019-12-27 17:55:34,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6f9077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 05:55:34, skipping insertion in model container [2019-12-27 17:55:34,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 05:55:33" (2/3) ... [2019-12-27 17:55:34,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6f9077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 05:55:34, skipping insertion in model container [2019-12-27 17:55:34,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 05:55:34" (3/3) ... [2019-12-27 17:55:34,421 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2019-12-27 17:55:34,432 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 17:55:34,432 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 17:55:34,440 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 17:55:34,441 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 17:55:34,470 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,470 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,470 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,471 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,471 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,471 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,472 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,472 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,472 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,472 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,473 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,473 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,474 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,474 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,474 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,474 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,475 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,475 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,479 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,479 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,479 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,480 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,485 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,486 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,486 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,487 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,489 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 17:55:34,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 17:55:34,528 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 17:55:34,528 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 17:55:34,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 17:55:34,528 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 17:55:34,529 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 17:55:34,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 17:55:34,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 17:55:34,529 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 17:55:34,542 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 17:55:34,543 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 17:55:34,584 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 17:55:34,585 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 17:55:34,590 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 17:55:34,593 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 17:55:34,620 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 17:55:34,621 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 17:55:34,622 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 17:55:34,626 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 17:55:34,627 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 17:55:36,137 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 17:55:36,212 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 17:55:36,213 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 17:55:36,217 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 17:55:36,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 17:55:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 17:55:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 17:55:36,237 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 17:55:36,238 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 17:55:36,238 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 17:55:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 17:55:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 17:55:36,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 17:55:36,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394825319] [2019-12-27 17:55:36,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 17:55:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 17:55:36,499 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 17:55:36,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394825319] [2019-12-27 17:55:36,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 17:55:36,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 17:55:36,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [846258894] [2019-12-27 17:55:36,504 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 17:55:36,510 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 17:55:36,525 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 17:55:36,526 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 17:55:36,530 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 17:55:36,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 17:55:36,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 17:55:36,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 17:55:36,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 17:55:36,549 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 17:55:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 17:55:36,576 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 17:55:36,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 17:55:36,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 17:55:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 17:55:36,589 INFO L225 Difference]: With dead ends: 50 [2019-12-27 17:55:36,589 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 17:55:36,591 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 17:55:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 17:55:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 17:55:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 17:55:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 17:55:36,631 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 17:55:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 17:55:36,632 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 17:55:36,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 17:55:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 17:55:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 17:55:36,633 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 17:55:36,633 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 17:55:36,634 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 17:55:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 17:55:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 17:55:36,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 17:55:36,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292949170] [2019-12-27 17:55:36,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 17:55:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 17:55:36,739 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 17:55:36,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292949170] [2019-12-27 17:55:36,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 17:55:36,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 17:55:36,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1307654038] [2019-12-27 17:55:36,740 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 17:55:36,744 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 17:55:36,749 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 17:55:36,749 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 17:55:36,750 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 17:55:36,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 17:55:36,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 17:55:36,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 17:55:36,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 17:55:36,753 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 17:55:36,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 17:55:36,806 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 17:55:36,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 17:55:36,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 17:55:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 17:55:36,807 INFO L225 Difference]: With dead ends: 36 [2019-12-27 17:55:36,808 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 17:55:36,808 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 17:55:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 17:55:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 17:55:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 17:55:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 17:55:36,813 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 17:55:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 17:55:36,814 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 17:55:36,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 17:55:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 17:55:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 17:55:36,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 17:55:36,815 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 17:55:36,815 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 17:55:36,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 17:55:36,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 17:55:36,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 17:55:36,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700328722] [2019-12-27 17:55:36,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 17:55:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 17:55:36,908 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 17:55:36,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700328722] [2019-12-27 17:55:36,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 17:55:36,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 17:55:36,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [260551485] [2019-12-27 17:55:36,910 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 17:55:36,911 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 17:55:36,914 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 17:55:36,914 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 17:55:36,916 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 17:55:36,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 17:55:36,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 17:55:36,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 17:55:36,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 17:55:36,917 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-27 17:55:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 17:55:36,962 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 17:55:36,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 17:55:36,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 17:55:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 17:55:36,964 INFO L225 Difference]: With dead ends: 33 [2019-12-27 17:55:36,964 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 17:55:36,965 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 17:55:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 17:55:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 17:55:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 17:55:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-27 17:55:36,972 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-27 17:55:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 17:55:36,972 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-27 17:55:36,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 17:55:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-27 17:55:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 17:55:36,973 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 17:55:36,973 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 17:55:36,973 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 17:55:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 17:55:36,976 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 17:55:36,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 17:55:36,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694809262] [2019-12-27 17:55:36,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 17:55:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 17:55:37,089 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 17:55:37,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694809262] [2019-12-27 17:55:37,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 17:55:37,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 17:55:37,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1194903730] [2019-12-27 17:55:37,090 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 17:55:37,093 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 17:55:37,095 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 17:55:37,096 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 17:55:37,150 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 17:55:37,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 17:55:37,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 17:55:37,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 17:55:37,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 17:55:37,152 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 5 states. [2019-12-27 17:55:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 17:55:37,174 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-27 17:55:37,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 17:55:37,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 17:55:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 17:55:37,176 INFO L225 Difference]: With dead ends: 20 [2019-12-27 17:55:37,176 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 17:55:37,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 17:55:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 17:55:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 17:55:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 17:55:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 17:55:37,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 17:55:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 17:55:37,177 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 17:55:37,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 17:55:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 17:55:37,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 17:55:37,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 05:55:37 BasicIcfg [2019-12-27 17:55:37,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 17:55:37,185 INFO L168 Benchmark]: Toolchain (without parser) took 4060.12 ms. Allocated memory was 138.9 MB in the beginning and 244.8 MB in the end (delta: 105.9 MB). Free memory was 101.0 MB in the beginning and 130.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,187 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.91 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.1 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.31 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,199 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,200 INFO L168 Benchmark]: RCFGBuilder took 446.98 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,201 INFO L168 Benchmark]: TraceAbstraction took 2768.50 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 134.2 MB in the beginning and 130.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2019-12-27 17:55:37,213 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 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.91 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.1 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.31 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.98 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2768.50 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 134.2 MB in the beginning and 130.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 37 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...