/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:48:55,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:48:55,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:48:55,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:48:55,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:48:55,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:48:55,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:48:55,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:48:55,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:48:55,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:48:55,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:48:55,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:48:55,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:48:55,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:48:55,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:48:55,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:48:55,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:48:55,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:48:55,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:48:55,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:48:55,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:48:55,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:48:55,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:48:55,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:48:55,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:48:55,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:48:55,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:48:55,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:48:55,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:48:55,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:48:55,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:48:55,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:48:55,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:48:55,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:48:55,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:48:55,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:48:55,358 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.epf [2019-12-18 15:48:55,373 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:48:55,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:48:55,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:48:55,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:48:55,374 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:48:55,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:48:55,375 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:48:55,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:48:55,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:48:55,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:48:55,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:48:55,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:48:55,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:48:55,376 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:48:55,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:48:55,377 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:48:55,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:48:55,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:48:55,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:48:55,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:48:55,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:48:55,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:48:55,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:48:55,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:48:55,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:48:55,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:48:55,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:48:55,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:48:55,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:48:55,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:48:55,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:48:55,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:48:55,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:48:55,684 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:48:55,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-18 15:48:55,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f58e8d/cea50e230b9e44c79eb5343ede82d781/FLAG5ff8d3427 [2019-12-18 15:48:56,310 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:48:56,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-18 15:48:56,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f58e8d/cea50e230b9e44c79eb5343ede82d781/FLAG5ff8d3427 [2019-12-18 15:48:56,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f58e8d/cea50e230b9e44c79eb5343ede82d781 [2019-12-18 15:48:56,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:48:56,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:48:56,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:48:56,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:48:56,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:48:56,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:48:56" (1/1) ... [2019-12-18 15:48:56,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0a5152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:56, skipping insertion in model container [2019-12-18 15:48:56,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:48:56" (1/1) ... [2019-12-18 15:48:56,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:48:56,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:48:57,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:48:57,181 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:48:57,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:48:57,343 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:48:57,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57 WrapperNode [2019-12-18 15:48:57,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:48:57,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:48:57,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:48:57,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:48:57,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:48:57,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:48:57,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:48:57,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:48:57,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (1/1) ... [2019-12-18 15:48:57,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:48:57,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:48:57,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:48:57,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:48:57,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (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 [2019-12-18 15:48:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 15:48:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 15:48:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:48:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:48:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:48:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:48:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:48:57,488 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:48:57,848 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:48:57,849 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-18 15:48:57,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:48:57 BoogieIcfgContainer [2019-12-18 15:48:57,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:48:57,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:48:57,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:48:57,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:48:57,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:48:56" (1/3) ... [2019-12-18 15:48:57,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e908a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:48:57, skipping insertion in model container [2019-12-18 15:48:57,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:48:57" (2/3) ... [2019-12-18 15:48:57,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e908a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:48:57, skipping insertion in model container [2019-12-18 15:48:57,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:48:57" (3/3) ... [2019-12-18 15:48:57,858 INFO L109 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2019-12-18 15:48:57,868 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:48:57,868 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:48:57,883 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 15:48:57,885 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:48:57,907 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,908 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,908 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,909 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,910 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,910 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:48:57,935 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:48:57,952 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:48:57,953 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:48:57,953 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:48:57,953 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:48:57,953 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:48:57,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:48:57,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:48:57,954 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:48:57,966 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 51 transitions [2019-12-18 15:48:57,968 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions [2019-12-18 15:48:58,001 INFO L126 PetriNetUnfolder]: 6/50 cut-off events. [2019-12-18 15:48:58,001 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:58,008 INFO L76 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs. 3/45 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2019-12-18 15:48:58,012 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions [2019-12-18 15:48:58,026 INFO L126 PetriNetUnfolder]: 6/50 cut-off events. [2019-12-18 15:48:58,026 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:48:58,028 INFO L76 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs. 3/45 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2019-12-18 15:48:58,030 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2019-12-18 15:48:58,032 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:48:59,054 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1164 [2019-12-18 15:48:59,054 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-18 15:48:59,059 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 23 transitions [2019-12-18 15:48:59,080 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2019-12-18 15:48:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-12-18 15:48:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 15:48:59,093 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:59,094 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-18 15:48:59,094 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:59,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:59,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1914205477, now seen corresponding path program 1 times [2019-12-18 15:48:59,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:59,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400623421] [2019-12-18 15:48:59,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:59,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400623421] [2019-12-18 15:48:59,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:59,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:48:59,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056685256] [2019-12-18 15:48:59,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 15:48:59,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 15:48:59,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 15:48:59,336 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2019-12-18 15:48:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:59,355 INFO L93 Difference]: Finished difference Result 74 states and 146 transitions. [2019-12-18 15:48:59,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 15:48:59,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-18 15:48:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:59,369 INFO L225 Difference]: With dead ends: 74 [2019-12-18 15:48:59,370 INFO L226 Difference]: Without dead ends: 68 [2019-12-18 15:48:59,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 15:48:59,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-18 15:48:59,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-18 15:48:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-18 15:48:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 134 transitions. [2019-12-18 15:48:59,413 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 134 transitions. Word has length 6 [2019-12-18 15:48:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:59,413 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 134 transitions. [2019-12-18 15:48:59,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 15:48:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 134 transitions. [2019-12-18 15:48:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:48:59,414 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:59,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:59,415 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:59,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:59,415 INFO L82 PathProgramCache]: Analyzing trace with hash -789185163, now seen corresponding path program 1 times [2019-12-18 15:48:59,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:59,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248775187] [2019-12-18 15:48:59,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:59,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248775187] [2019-12-18 15:48:59,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:59,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:48:59,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047780487] [2019-12-18 15:48:59,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:59,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:59,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:59,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:59,501 INFO L87 Difference]: Start difference. First operand 68 states and 134 transitions. Second operand 3 states. [2019-12-18 15:48:59,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:59,543 INFO L93 Difference]: Finished difference Result 73 states and 134 transitions. [2019-12-18 15:48:59,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:59,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:48:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:59,547 INFO L225 Difference]: With dead ends: 73 [2019-12-18 15:48:59,547 INFO L226 Difference]: Without dead ends: 58 [2019-12-18 15:48:59,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:59,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-18 15:48:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2019-12-18 15:48:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-18 15:48:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 101 transitions. [2019-12-18 15:48:59,565 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 101 transitions. Word has length 7 [2019-12-18 15:48:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:59,566 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 101 transitions. [2019-12-18 15:48:59,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2019-12-18 15:48:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 15:48:59,567 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:59,568 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:59,568 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:59,575 INFO L82 PathProgramCache]: Analyzing trace with hash -773727376, now seen corresponding path program 1 times [2019-12-18 15:48:59,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:59,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165733122] [2019-12-18 15:48:59,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:59,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165733122] [2019-12-18 15:48:59,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:59,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:48:59,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960322173] [2019-12-18 15:48:59,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:48:59,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:48:59,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:59,648 INFO L87 Difference]: Start difference. First operand 54 states and 101 transitions. Second operand 3 states. [2019-12-18 15:48:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:59,666 INFO L93 Difference]: Finished difference Result 50 states and 88 transitions. [2019-12-18 15:48:59,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:48:59,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 15:48:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:59,667 INFO L225 Difference]: With dead ends: 50 [2019-12-18 15:48:59,668 INFO L226 Difference]: Without dead ends: 40 [2019-12-18 15:48:59,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:48:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-18 15:48:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-18 15:48:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-18 15:48:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 69 transitions. [2019-12-18 15:48:59,674 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 69 transitions. Word has length 7 [2019-12-18 15:48:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:59,674 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 69 transitions. [2019-12-18 15:48:59,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:48:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2019-12-18 15:48:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:48:59,675 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:59,676 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:59,676 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:59,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:59,676 INFO L82 PathProgramCache]: Analyzing trace with hash -426072120, now seen corresponding path program 1 times [2019-12-18 15:48:59,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:59,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273182726] [2019-12-18 15:48:59,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:59,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273182726] [2019-12-18 15:48:59,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:59,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:48:59,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962132522] [2019-12-18 15:48:59,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:48:59,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:59,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:48:59,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:48:59,731 INFO L87 Difference]: Start difference. First operand 40 states and 69 transitions. Second operand 4 states. [2019-12-18 15:48:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:59,756 INFO L93 Difference]: Finished difference Result 45 states and 78 transitions. [2019-12-18 15:48:59,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:48:59,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:48:59,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:59,757 INFO L225 Difference]: With dead ends: 45 [2019-12-18 15:48:59,757 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 15:48:59,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:48:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 15:48:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 15:48:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 15:48:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2019-12-18 15:48:59,762 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 11 [2019-12-18 15:48:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:59,763 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2019-12-18 15:48:59,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:48:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2019-12-18 15:48:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:48:59,764 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:48:59,764 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:48:59,764 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:48:59,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:48:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1603258680, now seen corresponding path program 2 times [2019-12-18 15:48:59,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:48:59,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263791353] [2019-12-18 15:48:59,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:48:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:48:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:48:59,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263791353] [2019-12-18 15:48:59,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:48:59,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:48:59,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590219916] [2019-12-18 15:48:59,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:48:59,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:48:59,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:48:59,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:48:59,807 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2019-12-18 15:48:59,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:48:59,820 INFO L93 Difference]: Finished difference Result 17 states and 29 transitions. [2019-12-18 15:48:59,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:48:59,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:48:59,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:48:59,822 INFO L225 Difference]: With dead ends: 17 [2019-12-18 15:48:59,822 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:48:59,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:48:59,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:48:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:48:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:48:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:48:59,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 15:48:59,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:48:59,824 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:48:59,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:48:59,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:48:59,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:48:59,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:48:59 BasicIcfg [2019-12-18 15:48:59,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:48:59,831 INFO L168 Benchmark]: Toolchain (without parser) took 3211.55 ms. Allocated memory was 143.1 MB in the beginning and 230.2 MB in the end (delta: 87.0 MB). Free memory was 98.0 MB in the beginning and 99.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,832 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.93 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.8 MB in the beginning and 159.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,835 INFO L168 Benchmark]: Boogie Preprocessor took 33.53 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,836 INFO L168 Benchmark]: RCFGBuilder took 425.13 ms. Allocated memory is still 200.8 MB. Free memory was 156.2 MB in the beginning and 137.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,837 INFO L168 Benchmark]: TraceAbstraction took 1977.43 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 137.8 MB in the beginning and 99.4 MB in the end (delta: 38.4 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2019-12-18 15:48:59,841 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.93 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.8 MB in the beginning and 159.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.53 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 425.13 ms. Allocated memory is still 200.8 MB. Free memory was 156.2 MB in the beginning and 137.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1977.43 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 137.8 MB in the beginning and 99.4 MB in the end (delta: 38.4 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 49 ProgramPointsBefore, 20 ProgramPointsAfterwards, 51 TransitionsBefore, 23 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 320 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1164 CheckedPairsTotal, 34 TotalNumberOfCompositions - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 2 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 46 SDslu, 35 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...