/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:05:36,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:05:36,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:05:36,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:05:36,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:05:36,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:05:36,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:05:36,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:05:36,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:05:36,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:05:36,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:05:36,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:05:36,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:05:36,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:05:36,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:05:36,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:05:36,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:05:36,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:05:36,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:05:36,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:05:36,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:05:36,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:05:36,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:05:36,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:05:36,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:05:36,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:05:36,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:05:36,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:05:36,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:05:36,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:05:36,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:05:36,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:05:36,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:05:36,789 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:05:36,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:05:36,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:05:36,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:05:36,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:05:36,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:05:36,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:05:36,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:05:36,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:05:36,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:05:36,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:05:36,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:05:36,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:05:36,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:05:36,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:05:36,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:05:36,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:05:36,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:05:36,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:05:36,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:05:36,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:05:36,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:05:36,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:05:36,794 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:05:36,794 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:05:36,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:05:36,794 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:05:37,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:05:37,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:05:37,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:05:37,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:05:37,118 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:05:37,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-06 00:05:37,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed448f66b/936c02f190b740619610863158b71645/FLAGd627ad21b [2020-10-06 00:05:37,666 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:05:37,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-06 00:05:37,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed448f66b/936c02f190b740619610863158b71645/FLAGd627ad21b [2020-10-06 00:05:37,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed448f66b/936c02f190b740619610863158b71645 [2020-10-06 00:05:37,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:05:37,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:05:37,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:05:38,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:05:38,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:05:38,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:05:37" (1/1) ... [2020-10-06 00:05:38,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f4bb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38, skipping insertion in model container [2020-10-06 00:05:38,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:05:37" (1/1) ... [2020-10-06 00:05:38,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:05:38,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:05:38,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:05:38,477 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:05:38,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:05:38,613 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:05:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38 WrapperNode [2020-10-06 00:05:38,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:05:38,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:05:38,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:05:38,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:05:38,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:05:38,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:05:38,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:05:38,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:05:38,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... [2020-10-06 00:05:38,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:05:38,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:05:38,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:05:38,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:05:38,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:05:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-06 00:05:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-06 00:05:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:05:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:05:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:05:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:05:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:05:38,769 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:05:39,070 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:05:39,071 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-06 00:05:39,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:05:39 BoogieIcfgContainer [2020-10-06 00:05:39,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:05:39,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:05:39,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:05:39,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:05:39,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:05:37" (1/3) ... [2020-10-06 00:05:39,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:05:39, skipping insertion in model container [2020-10-06 00:05:39,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:05:38" (2/3) ... [2020-10-06 00:05:39,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:05:39, skipping insertion in model container [2020-10-06 00:05:39,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:05:39" (3/3) ... [2020-10-06 00:05:39,082 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-10-06 00:05:39,095 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:05:39,096 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:05:39,104 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:05:39,106 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:05:39,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:05:39,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 00:05:39,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:05:39,205 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:05:39,207 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:05:39,207 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:05:39,207 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:05:39,207 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:05:39,207 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:05:39,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:05:39,223 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-10-06 00:05:39,224 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-10-06 00:05:39,267 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-10-06 00:05:39,268 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:05:39,275 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-10-06 00:05:39,279 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-10-06 00:05:39,322 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-10-06 00:05:39,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:05:39,324 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-10-06 00:05:39,328 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2400 [2020-10-06 00:05:39,330 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:05:39,927 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4373 [2020-10-06 00:05:39,928 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2020-10-06 00:05:39,931 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-10-06 00:05:39,953 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-10-06 00:05:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-10-06 00:05:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:05:39,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:39,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:39,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:39,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:39,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-10-06 00:05:39,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:39,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556929095] [2020-10-06 00:05:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556929095] [2020-10-06 00:05:40,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:05:40,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1759223590] [2020-10-06 00:05:40,133 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,136 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,149 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:05:40,149 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,153 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 00:05:40,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 00:05:40,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 00:05:40,169 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-10-06 00:05:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,186 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-10-06 00:05:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 00:05:40,187 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-06 00:05:40,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,201 INFO L225 Difference]: With dead ends: 198 [2020-10-06 00:05:40,201 INFO L226 Difference]: Without dead ends: 198 [2020-10-06 00:05:40,203 INFO L675 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 [2020-10-06 00:05:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-06 00:05:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-06 00:05:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-06 00:05:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-10-06 00:05:40,270 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-10-06 00:05:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,271 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-10-06 00:05:40,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 00:05:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-10-06 00:05:40,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:05:40,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:05:40,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-10-06 00:05:40,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406554546] [2020-10-06 00:05:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406554546] [2020-10-06 00:05:40,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:05:40,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2073053735] [2020-10-06 00:05:40,340 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,340 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,342 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 00:05:40,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,342 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,345 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-10-06 00:05:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,380 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-10-06 00:05:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 00:05:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,385 INFO L225 Difference]: With dead ends: 362 [2020-10-06 00:05:40,385 INFO L226 Difference]: Without dead ends: 362 [2020-10-06 00:05:40,386 INFO L675 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 [2020-10-06 00:05:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-10-06 00:05:40,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-10-06 00:05:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-06 00:05:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-10-06 00:05:40,415 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-10-06 00:05:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,415 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-10-06 00:05:40,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-10-06 00:05:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:05:40,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:05:40,417 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-10-06 00:05:40,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378396550] [2020-10-06 00:05:40,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378396550] [2020-10-06 00:05:40,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:05:40,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1139626910] [2020-10-06 00:05:40,461 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,462 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,463 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 00:05:40,463 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,463 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,465 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-10-06 00:05:40,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,484 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-10-06 00:05:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 00:05:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,488 INFO L225 Difference]: With dead ends: 348 [2020-10-06 00:05:40,488 INFO L226 Difference]: Without dead ends: 348 [2020-10-06 00:05:40,489 INFO L675 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 [2020-10-06 00:05:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-06 00:05:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-10-06 00:05:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-06 00:05:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-10-06 00:05:40,508 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-10-06 00:05:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,508 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-10-06 00:05:40,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-10-06 00:05:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 00:05:40,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:05:40,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-10-06 00:05:40,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457419144] [2020-10-06 00:05:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457419144] [2020-10-06 00:05:40,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:05:40,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1124036524] [2020-10-06 00:05:40,592 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,594 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,597 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 48 transitions. [2020-10-06 00:05:40,597 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,615 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,617 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-10-06 00:05:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,662 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-10-06 00:05:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-06 00:05:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,665 INFO L225 Difference]: With dead ends: 220 [2020-10-06 00:05:40,665 INFO L226 Difference]: Without dead ends: 220 [2020-10-06 00:05:40,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-06 00:05:40,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-06 00:05:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-06 00:05:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-10-06 00:05:40,680 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-10-06 00:05:40,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,680 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-10-06 00:05:40,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-10-06 00:05:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 00:05:40,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:05:40,684 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,684 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-10-06 00:05:40,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655299171] [2020-10-06 00:05:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655299171] [2020-10-06 00:05:40,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:05:40,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1020316632] [2020-10-06 00:05:40,726 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,728 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,730 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-10-06 00:05:40,730 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,738 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,739 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-10-06 00:05:40,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,781 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-10-06 00:05:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-06 00:05:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,784 INFO L225 Difference]: With dead ends: 240 [2020-10-06 00:05:40,784 INFO L226 Difference]: Without dead ends: 240 [2020-10-06 00:05:40,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-06 00:05:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-10-06 00:05:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-06 00:05:40,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-10-06 00:05:40,796 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-10-06 00:05:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,797 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-10-06 00:05:40,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-10-06 00:05:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 00:05:40,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:05:40,800 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,800 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-10-06 00:05:40,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399565949] [2020-10-06 00:05:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399565949] [2020-10-06 00:05:40,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:05:40,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [218311484] [2020-10-06 00:05:40,854 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,855 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,857 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-10-06 00:05:40,857 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,861 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,862 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-10-06 00:05:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,898 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-10-06 00:05:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-06 00:05:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,901 INFO L225 Difference]: With dead ends: 228 [2020-10-06 00:05:40,901 INFO L226 Difference]: Without dead ends: 228 [2020-10-06 00:05:40,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-06 00:05:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-10-06 00:05:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-06 00:05:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-10-06 00:05:40,910 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-10-06 00:05:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,910 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-10-06 00:05:40,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,911 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-10-06 00:05:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 00:05:40,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:05:40,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:05:40,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:05:40,913 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:05:40,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:05:40,913 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-10-06 00:05:40,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:05:40,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446674471] [2020-10-06 00:05:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:05:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:05:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:05:40,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446674471] [2020-10-06 00:05:40,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:05:40,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:05:40,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1896070869] [2020-10-06 00:05:40,947 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:05:40,948 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:05:40,950 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 46 transitions. [2020-10-06 00:05:40,950 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:05:40,957 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:05:40,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:05:40,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:05:40,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:05:40,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,958 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-10-06 00:05:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:05:40,992 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-10-06 00:05:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:05:40,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-06 00:05:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:05:40,993 INFO L225 Difference]: With dead ends: 194 [2020-10-06 00:05:40,993 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:05:40,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:05:40,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:05:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:05:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:05:40,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:05:40,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-06 00:05:40,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:05:40,995 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:05:40,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:05:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:05:40,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:05:40,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:05:40,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:05:40 BasicIcfg [2020-10-06 00:05:40,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:05:41,002 INFO L168 Benchmark]: Toolchain (without parser) took 3003.05 ms. Allocated memory was 147.8 MB in the beginning and 245.4 MB in the end (delta: 97.5 MB). Free memory was 102.5 MB in the beginning and 185.6 MB in the end (delta: -83.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,003 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.52 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 165.0 MB in the end (delta: -62.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 205.0 MB. Free memory was 165.0 MB in the beginning and 162.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,006 INFO L168 Benchmark]: Boogie Preprocessor took 29.54 ms. Allocated memory is still 205.0 MB. Free memory was 162.8 MB in the beginning and 161.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,006 INFO L168 Benchmark]: RCFGBuilder took 376.26 ms. Allocated memory is still 205.0 MB. Free memory was 160.9 MB in the beginning and 139.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:05:41,007 INFO L168 Benchmark]: TraceAbstraction took 1924.00 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 138.9 MB in the beginning and 185.6 MB in the end (delta: -46.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 00:05:41,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.52 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 165.0 MB in the end (delta: -62.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 205.0 MB. Free memory was 165.0 MB in the beginning and 162.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.54 ms. Allocated memory is still 205.0 MB. Free memory was 162.8 MB in the beginning and 161.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.26 ms. Allocated memory is still 205.0 MB. Free memory was 160.9 MB in the beginning and 139.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1924.00 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 138.9 MB in the beginning and 185.6 MB in the end (delta: -46.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 62 ProgramPointsBefore, 35 ProgramPointsAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 1006 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4373 CheckedPairsTotal, 39 TotalNumberOfCompositions - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: 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, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 373 SDtfs, 150 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...