/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 11:59:07,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:59:07,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:59:07,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:59:07,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:59:07,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:59:07,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:59:07,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:59:07,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:59:07,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:59:07,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:59:07,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:59:07,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:59:07,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:59:07,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:59:07,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:59:07,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:59:07,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:59:07,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:59:07,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:59:07,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:59:07,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:59:07,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:59:07,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:59:07,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 11:59:07,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:59:07,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:59:07,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:59:07,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 11:59:07,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:59:07,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:59:07,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:59:07,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:59:07,763 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:59:07,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:59:07,764 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:59:07,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:59:07,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:59:07,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:59:07,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:59:07,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:59:07,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:59:07,765 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:59:07,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:59:07,766 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:59:07,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:59:07,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:59:07,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:59:07,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:59:07,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:59:07,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:59:07,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:59:07,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:59:07,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:59:07,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:59:07,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:59:07,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:59:07,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:59:07,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:59:08,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:59:08,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:59:08,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:59:08,051 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:59:08,051 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:59:08,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2019-12-18 11:59:08,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0caeea387/5922cf4f470f40fb822e90260d82a1b2/FLAG785cd4266 [2019-12-18 11:59:08,666 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:59:08,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2019-12-18 11:59:08,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0caeea387/5922cf4f470f40fb822e90260d82a1b2/FLAG785cd4266 [2019-12-18 11:59:08,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0caeea387/5922cf4f470f40fb822e90260d82a1b2 [2019-12-18 11:59:09,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:59:09,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:59:09,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:59:09,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:59:09,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:59:09,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:59:08" (1/1) ... [2019-12-18 11:59:09,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eef5ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09, skipping insertion in model container [2019-12-18 11:59:09,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:59:08" (1/1) ... [2019-12-18 11:59:09,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:59:09,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:59:09,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:59:09,522 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:59:09,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:59:09,637 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:59:09,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09 WrapperNode [2019-12-18 11:59:09,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:59:09,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:59:09,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:59:09,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:59:09,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:59:09,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:59:09,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:59:09,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:59:09,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (1/1) ... [2019-12-18 11:59:09,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:59:09,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:59:09,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:59:09,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:59:09,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (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 11:59:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 11:59:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 11:59:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:59:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:59:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:59:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:59:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:59:09,781 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 11:59:10,064 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:59:10,064 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-18 11:59:10,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:59:10 BoogieIcfgContainer [2019-12-18 11:59:10,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:59:10,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:59:10,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:59:10,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:59:10,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:59:08" (1/3) ... [2019-12-18 11:59:10,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67571c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:59:10, skipping insertion in model container [2019-12-18 11:59:10,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:59:09" (2/3) ... [2019-12-18 11:59:10,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67571c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:59:10, skipping insertion in model container [2019-12-18 11:59:10,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:59:10" (3/3) ... [2019-12-18 11:59:10,090 INFO L109 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2019-12-18 11:59:10,106 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:59:10,107 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:59:10,114 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 11:59:10,115 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:59:10,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,149 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,150 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,150 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:10,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 11:59:10,182 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:10,183 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:10,183 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:10,183 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:10,183 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:10,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:10,183 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:10,184 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:10,195 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 28 transitions [2019-12-18 11:59:10,197 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions [2019-12-18 11:59:10,226 INFO L126 PetriNetUnfolder]: 3/36 cut-off events. [2019-12-18 11:59:10,226 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:10,231 INFO L76 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs. 5/35 useless extension candidates. Maximal degree in co-relation 18. Up to 4 conditions per place. [2019-12-18 11:59:10,236 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions [2019-12-18 11:59:10,247 INFO L126 PetriNetUnfolder]: 3/36 cut-off events. [2019-12-18 11:59:10,248 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:10,249 INFO L76 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs. 5/35 useless extension candidates. Maximal degree in co-relation 18. Up to 4 conditions per place. [2019-12-18 11:59:10,250 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 180 [2019-12-18 11:59:10,251 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:10,852 INFO L206 etLargeBlockEncoding]: Checked pairs total: 114 [2019-12-18 11:59:10,853 INFO L214 etLargeBlockEncoding]: Total number of compositions: 22 [2019-12-18 11:59:10,857 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 11:59:10,867 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 11:59:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 11:59:10,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:59:10,882 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:10,883 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:59:10,883 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:59:10,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:10,890 INFO L82 PathProgramCache]: Analyzing trace with hash 4107967, now seen corresponding path program 1 times [2019-12-18 11:59:10,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:10,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111386158] [2019-12-18 11:59:10,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:11,148 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 11:59:11,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111386158] [2019-12-18 11:59:11,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:11,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:59:11,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529838227] [2019-12-18 11:59:11,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:11,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:11,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:11,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:11,179 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-18 11:59:11,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:11,199 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-18 11:59:11,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:11,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:59:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:11,228 INFO L225 Difference]: With dead ends: 11 [2019-12-18 11:59:11,228 INFO L226 Difference]: Without dead ends: 11 [2019-12-18 11:59:11,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-18 11:59:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-18 11:59:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-18 11:59:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-18 11:59:11,275 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-18 11:59:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:11,276 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-18 11:59:11,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-18 11:59:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 11:59:11,277 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:11,277 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 11:59:11,278 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:59:11,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:11,278 INFO L82 PathProgramCache]: Analyzing trace with hash -347254361, now seen corresponding path program 1 times [2019-12-18 11:59:11,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:11,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39805487] [2019-12-18 11:59:11,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:11,361 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:59:11,362 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:59:11,363 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:59:11,364 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 11:59:11,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,379 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,379 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:11,387 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 11:59:11,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:11,388 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:11,388 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:11,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:11,389 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:11,389 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:11,389 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:11,389 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:11,392 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 38 transitions [2019-12-18 11:59:11,393 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions [2019-12-18 11:59:11,418 INFO L126 PetriNetUnfolder]: 5/55 cut-off events. [2019-12-18 11:59:11,418 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:11,422 INFO L76 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 5/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs. 14/59 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2019-12-18 11:59:11,426 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions [2019-12-18 11:59:11,437 INFO L126 PetriNetUnfolder]: 5/55 cut-off events. [2019-12-18 11:59:11,437 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:11,438 INFO L76 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 5/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs. 14/59 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2019-12-18 11:59:11,440 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 540 [2019-12-18 11:59:11,440 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:12,063 INFO L206 etLargeBlockEncoding]: Checked pairs total: 736 [2019-12-18 11:59:12,064 INFO L214 etLargeBlockEncoding]: Total number of compositions: 28 [2019-12-18 11:59:12,064 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 16 transitions [2019-12-18 11:59:12,082 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 149 states. [2019-12-18 11:59:12,082 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-12-18 11:59:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:59:12,083 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:12,083 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:59:12,084 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash 6502175, now seen corresponding path program 1 times [2019-12-18 11:59:12,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:12,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928421790] [2019-12-18 11:59:12,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:12,191 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 11:59:12,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928421790] [2019-12-18 11:59:12,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:12,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:59:12,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622185300] [2019-12-18 11:59:12,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:12,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:12,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:12,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:12,194 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 3 states. [2019-12-18 11:59:12,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:12,221 INFO L93 Difference]: Finished difference Result 87 states and 182 transitions. [2019-12-18 11:59:12,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:12,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:59:12,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:12,224 INFO L225 Difference]: With dead ends: 87 [2019-12-18 11:59:12,224 INFO L226 Difference]: Without dead ends: 87 [2019-12-18 11:59:12,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-18 11:59:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-18 11:59:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-18 11:59:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 182 transitions. [2019-12-18 11:59:12,239 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 182 transitions. Word has length 4 [2019-12-18 11:59:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:12,240 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 182 transitions. [2019-12-18 11:59:12,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 182 transitions. [2019-12-18 11:59:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 11:59:12,241 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:12,241 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 11:59:12,242 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:12,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1890616172, now seen corresponding path program 1 times [2019-12-18 11:59:12,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:12,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808244068] [2019-12-18 11:59:12,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:12,270 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:59:12,271 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:59:12,271 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:59:12,271 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 11:59:12,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,279 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,279 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,280 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,280 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,280 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,280 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,282 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,282 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,284 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,284 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,284 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,290 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,291 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,293 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,293 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,293 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,294 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:12,295 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 11:59:12,295 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:12,296 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:12,296 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:12,296 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:12,296 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:12,296 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:12,297 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:12,297 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:12,300 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions [2019-12-18 11:59:12,300 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions [2019-12-18 11:59:12,334 INFO L126 PetriNetUnfolder]: 7/74 cut-off events. [2019-12-18 11:59:12,334 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:12,337 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 7/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs. 27/87 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2019-12-18 11:59:12,346 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions [2019-12-18 11:59:12,362 INFO L126 PetriNetUnfolder]: 7/74 cut-off events. [2019-12-18 11:59:12,362 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:12,364 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 7/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs. 27/87 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2019-12-18 11:59:12,368 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1080 [2019-12-18 11:59:12,369 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:13,053 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1503 [2019-12-18 11:59:13,053 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-18 11:59:13,054 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 22 transitions [2019-12-18 11:59:13,086 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 749 states. [2019-12-18 11:59:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states. [2019-12-18 11:59:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:59:13,087 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:13,087 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:59:13,087 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:13,088 INFO L82 PathProgramCache]: Analyzing trace with hash 9425446, now seen corresponding path program 1 times [2019-12-18 11:59:13,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:13,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653148785] [2019-12-18 11:59:13,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:13,160 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 11:59:13,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653148785] [2019-12-18 11:59:13,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:13,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:59:13,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837720303] [2019-12-18 11:59:13,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:13,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:13,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:13,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:13,164 INFO L87 Difference]: Start difference. First operand 749 states. Second operand 3 states. [2019-12-18 11:59:13,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:13,220 INFO L93 Difference]: Finished difference Result 421 states and 1176 transitions. [2019-12-18 11:59:13,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:13,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:59:13,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:13,239 INFO L225 Difference]: With dead ends: 421 [2019-12-18 11:59:13,239 INFO L226 Difference]: Without dead ends: 421 [2019-12-18 11:59:13,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-12-18 11:59:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2019-12-18 11:59:13,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2019-12-18 11:59:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1176 transitions. [2019-12-18 11:59:13,310 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1176 transitions. Word has length 4 [2019-12-18 11:59:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:13,310 INFO L462 AbstractCegarLoop]: Abstraction has 421 states and 1176 transitions. [2019-12-18 11:59:13,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1176 transitions. [2019-12-18 11:59:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:59:13,312 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:13,312 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:59:13,312 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:13,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1692799425, now seen corresponding path program 1 times [2019-12-18 11:59:13,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:13,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362975298] [2019-12-18 11:59:13,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:59:13,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362975298] [2019-12-18 11:59:13,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:13,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:59:13,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764478868] [2019-12-18 11:59:13,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:13,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:13,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:13,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:13,354 INFO L87 Difference]: Start difference. First operand 421 states and 1176 transitions. Second operand 3 states. [2019-12-18 11:59:13,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:13,381 INFO L93 Difference]: Finished difference Result 319 states and 912 transitions. [2019-12-18 11:59:13,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:13,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 11:59:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:13,386 INFO L225 Difference]: With dead ends: 319 [2019-12-18 11:59:13,386 INFO L226 Difference]: Without dead ends: 319 [2019-12-18 11:59:13,387 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 11:59:13,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-12-18 11:59:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-12-18 11:59:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-12-18 11:59:13,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 912 transitions. [2019-12-18 11:59:13,418 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 912 transitions. Word has length 10 [2019-12-18 11:59:13,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:13,418 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 912 transitions. [2019-12-18 11:59:13,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 912 transitions. [2019-12-18 11:59:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:59:13,422 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:13,422 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 11:59:13,423 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash 790757285, now seen corresponding path program 1 times [2019-12-18 11:59:13,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:13,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659156011] [2019-12-18 11:59:13,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:13,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:59:13,477 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:59:13,477 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:59:13,477 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 11:59:13,485 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,485 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,485 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,486 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,487 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,490 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,490 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,490 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,490 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,492 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,492 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,493 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,493 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,493 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,493 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,494 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,494 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,494 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,496 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,496 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,497 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,497 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,497 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,498 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:13,505 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 11:59:13,506 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:13,506 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:13,506 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:13,506 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:13,506 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:13,506 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:13,506 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:13,506 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:13,507 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions [2019-12-18 11:59:13,507 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions [2019-12-18 11:59:13,531 INFO L126 PetriNetUnfolder]: 9/93 cut-off events. [2019-12-18 11:59:13,531 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:13,533 INFO L76 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 93 events. 9/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs. 44/119 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2019-12-18 11:59:13,536 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions [2019-12-18 11:59:13,548 INFO L126 PetriNetUnfolder]: 9/93 cut-off events. [2019-12-18 11:59:13,548 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:13,550 INFO L76 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 93 events. 9/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs. 44/119 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2019-12-18 11:59:13,553 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1800 [2019-12-18 11:59:13,554 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:14,377 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2959 [2019-12-18 11:59:14,377 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-18 11:59:14,378 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 29 transitions [2019-12-18 11:59:14,743 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5364 states. [2019-12-18 11:59:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states. [2019-12-18 11:59:14,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:59:14,744 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:14,744 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:59:14,744 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:59:14,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:14,744 INFO L82 PathProgramCache]: Analyzing trace with hash 12901861, now seen corresponding path program 1 times [2019-12-18 11:59:14,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:14,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024480255] [2019-12-18 11:59:14,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:14,783 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 11:59:14,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024480255] [2019-12-18 11:59:14,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:14,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:59:14,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286247401] [2019-12-18 11:59:14,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:14,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:14,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:14,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:14,785 INFO L87 Difference]: Start difference. First operand 5364 states. Second operand 3 states. [2019-12-18 11:59:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:14,877 INFO L93 Difference]: Finished difference Result 3413 states and 12761 transitions. [2019-12-18 11:59:14,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:14,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:59:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:14,914 INFO L225 Difference]: With dead ends: 3413 [2019-12-18 11:59:14,914 INFO L226 Difference]: Without dead ends: 3413 [2019-12-18 11:59:14,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:14,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2019-12-18 11:59:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3413. [2019-12-18 11:59:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3413 states. [2019-12-18 11:59:15,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 12761 transitions. [2019-12-18 11:59:15,082 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 12761 transitions. Word has length 4 [2019-12-18 11:59:15,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:15,082 INFO L462 AbstractCegarLoop]: Abstraction has 3413 states and 12761 transitions. [2019-12-18 11:59:15,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 12761 transitions. [2019-12-18 11:59:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:59:15,083 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:15,083 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:59:15,084 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:59:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:15,084 INFO L82 PathProgramCache]: Analyzing trace with hash -932092983, now seen corresponding path program 1 times [2019-12-18 11:59:15,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:15,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451769410] [2019-12-18 11:59:15,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:59:15,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451769410] [2019-12-18 11:59:15,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:15,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:59:15,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905612475] [2019-12-18 11:59:15,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:15,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:15,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:15,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:15,113 INFO L87 Difference]: Start difference. First operand 3413 states and 12761 transitions. Second operand 3 states. [2019-12-18 11:59:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:15,215 INFO L93 Difference]: Finished difference Result 1975 states and 7342 transitions. [2019-12-18 11:59:15,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:15,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 11:59:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:15,233 INFO L225 Difference]: With dead ends: 1975 [2019-12-18 11:59:15,234 INFO L226 Difference]: Without dead ends: 1975 [2019-12-18 11:59:15,235 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 11:59:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-12-18 11:59:15,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1975. [2019-12-18 11:59:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2019-12-18 11:59:15,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 7342 transitions. [2019-12-18 11:59:15,308 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 7342 transitions. Word has length 10 [2019-12-18 11:59:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:15,308 INFO L462 AbstractCegarLoop]: Abstraction has 1975 states and 7342 transitions. [2019-12-18 11:59:15,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 7342 transitions. [2019-12-18 11:59:15,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 11:59:15,316 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:15,317 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 11:59:15,317 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:59:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:15,317 INFO L82 PathProgramCache]: Analyzing trace with hash -151307730, now seen corresponding path program 1 times [2019-12-18 11:59:15,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:15,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263737803] [2019-12-18 11:59:15,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:15,367 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:59:15,367 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:59:15,367 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:59:15,368 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 11:59:15,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,376 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,385 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,386 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,386 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,388 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,388 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,388 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,388 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,390 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,390 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,390 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,390 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:15,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 11:59:15,392 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:15,392 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:15,392 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:15,393 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:15,393 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:15,393 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:15,393 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:15,393 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:15,394 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 68 transitions [2019-12-18 11:59:15,395 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions [2019-12-18 11:59:15,416 INFO L126 PetriNetUnfolder]: 11/112 cut-off events. [2019-12-18 11:59:15,416 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:15,419 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 112 events. 11/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 264 event pairs. 65/155 useless extension candidates. Maximal degree in co-relation 109. Up to 12 conditions per place. [2019-12-18 11:59:15,424 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions [2019-12-18 11:59:15,440 INFO L126 PetriNetUnfolder]: 11/112 cut-off events. [2019-12-18 11:59:15,440 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:15,442 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 112 events. 11/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 264 event pairs. 65/155 useless extension candidates. Maximal degree in co-relation 109. Up to 12 conditions per place. [2019-12-18 11:59:15,447 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2700 [2019-12-18 11:59:15,447 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:16,507 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4542 [2019-12-18 11:59:16,507 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2019-12-18 11:59:16,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 35 transitions [2019-12-18 11:59:18,969 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26848 states. [2019-12-18 11:59:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand 26848 states. [2019-12-18 11:59:18,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:59:18,970 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:18,970 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:59:18,970 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:18,970 INFO L82 PathProgramCache]: Analyzing trace with hash 16900623, now seen corresponding path program 1 times [2019-12-18 11:59:18,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:18,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969649187] [2019-12-18 11:59:18,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:19,020 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 11:59:19,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969649187] [2019-12-18 11:59:19,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:19,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:59:19,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872026969] [2019-12-18 11:59:19,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:19,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:19,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:19,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:19,022 INFO L87 Difference]: Start difference. First operand 26848 states. Second operand 3 states. [2019-12-18 11:59:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:19,360 INFO L93 Difference]: Finished difference Result 17477 states and 78937 transitions. [2019-12-18 11:59:19,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:19,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:59:19,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:20,425 INFO L225 Difference]: With dead ends: 17477 [2019-12-18 11:59:20,426 INFO L226 Difference]: Without dead ends: 17477 [2019-12-18 11:59:20,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17477 states. [2019-12-18 11:59:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17477 to 17477. [2019-12-18 11:59:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17477 states. [2019-12-18 11:59:21,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17477 states to 17477 states and 78937 transitions. [2019-12-18 11:59:21,376 INFO L78 Accepts]: Start accepts. Automaton has 17477 states and 78937 transitions. Word has length 4 [2019-12-18 11:59:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:21,376 INFO L462 AbstractCegarLoop]: Abstraction has 17477 states and 78937 transitions. [2019-12-18 11:59:21,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:21,377 INFO L276 IsEmpty]: Start isEmpty. Operand 17477 states and 78937 transitions. [2019-12-18 11:59:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:59:21,377 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:21,377 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:59:21,377 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:21,378 INFO L82 PathProgramCache]: Analyzing trace with hash 110994816, now seen corresponding path program 1 times [2019-12-18 11:59:21,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:21,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423408135] [2019-12-18 11:59:21,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:59:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:59:21,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423408135] [2019-12-18 11:59:21,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:59:21,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:59:21,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927158663] [2019-12-18 11:59:21,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:59:21,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:59:21,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:59:21,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:59:21,402 INFO L87 Difference]: Start difference. First operand 17477 states and 78937 transitions. Second operand 3 states. [2019-12-18 11:59:21,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:59:21,486 INFO L93 Difference]: Finished difference Result 7918 states and 35335 transitions. [2019-12-18 11:59:21,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:59:21,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 11:59:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:59:21,524 INFO L225 Difference]: With dead ends: 7918 [2019-12-18 11:59:21,524 INFO L226 Difference]: Without dead ends: 7918 [2019-12-18 11:59:21,524 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 11:59:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7918 states. [2019-12-18 11:59:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7918 to 7918. [2019-12-18 11:59:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7918 states. [2019-12-18 11:59:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7918 states to 7918 states and 35335 transitions. [2019-12-18 11:59:21,790 INFO L78 Accepts]: Start accepts. Automaton has 7918 states and 35335 transitions. Word has length 10 [2019-12-18 11:59:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:59:21,790 INFO L462 AbstractCegarLoop]: Abstraction has 7918 states and 35335 transitions. [2019-12-18 11:59:21,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:59:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 7918 states and 35335 transitions. [2019-12-18 11:59:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-18 11:59:21,793 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:59:21,794 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:59:21,794 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:59:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:59:21,794 INFO L82 PathProgramCache]: Analyzing trace with hash -359798271, now seen corresponding path program 1 times [2019-12-18 11:59:21,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:59:21,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663122720] [2019-12-18 11:59:21,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:59:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:59:21,814 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:59:21,814 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:59:21,814 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:59:21,814 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-18 11:59:21,822 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,822 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,822 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,822 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,823 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,824 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,825 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,826 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,827 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,828 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,829 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,831 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,831 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,831 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,832 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,833 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,833 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,835 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,835 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:59:21,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 11:59:21,841 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:59:21,841 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:59:21,842 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:59:21,842 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:59:21,842 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:59:21,842 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:59:21,842 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:59:21,842 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:59:21,843 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 78 transitions [2019-12-18 11:59:21,844 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions [2019-12-18 11:59:21,858 INFO L126 PetriNetUnfolder]: 13/131 cut-off events. [2019-12-18 11:59:21,858 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:21,860 INFO L76 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 131 events. 13/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 315 event pairs. 90/195 useless extension candidates. Maximal degree in co-relation 136. Up to 14 conditions per place. [2019-12-18 11:59:21,867 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions [2019-12-18 11:59:21,880 INFO L126 PetriNetUnfolder]: 13/131 cut-off events. [2019-12-18 11:59:21,881 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:59:21,883 INFO L76 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 131 events. 13/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 315 event pairs. 90/195 useless extension candidates. Maximal degree in co-relation 136. Up to 14 conditions per place. [2019-12-18 11:59:21,890 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3780 [2019-12-18 11:59:21,890 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:59:22,269 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-12-18 11:59:23,718 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6986 [2019-12-18 11:59:23,718 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2019-12-18 11:59:23,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 46 transitions [2019-12-18 12:01:51,630 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 225504 states. [2019-12-18 12:01:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 225504 states. [2019-12-18 12:01:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 12:01:51,630 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 12:01:51,631 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 12:01:51,631 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 12:01:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 12:01:51,632 INFO L82 PathProgramCache]: Analyzing trace with hash 21374692, now seen corresponding path program 1 times [2019-12-18 12:01:51,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 12:01:51,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844792108] [2019-12-18 12:01:51,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 12:01:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 12:01:51,653 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 12:01:51,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844792108] [2019-12-18 12:01:51,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 12:01:51,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 12:01:51,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389924924] [2019-12-18 12:01:51,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 12:01:51,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 12:01:51,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 12:01:51,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 12:01:51,655 INFO L87 Difference]: Start difference. First operand 225504 states. Second operand 3 states. [2019-12-18 12:01:57,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 12:01:57,752 INFO L93 Difference]: Finished difference Result 162377 states and 896814 transitions. [2019-12-18 12:01:57,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 12:01:57,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 12:01:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 12:01:58,750 INFO L225 Difference]: With dead ends: 162377 [2019-12-18 12:01:58,750 INFO L226 Difference]: Without dead ends: 162377 [2019-12-18 12:01:58,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 12:02:03,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162377 states. [2019-12-18 12:02:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162377 to 162377. [2019-12-18 12:02:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162377 states. [2019-12-18 12:02:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162377 states to 162377 states and 896814 transitions. [2019-12-18 12:02:15,711 INFO L78 Accepts]: Start accepts. Automaton has 162377 states and 896814 transitions. Word has length 4 [2019-12-18 12:02:15,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 12:02:15,711 INFO L462 AbstractCegarLoop]: Abstraction has 162377 states and 896814 transitions. [2019-12-18 12:02:15,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 12:02:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 162377 states and 896814 transitions. [2019-12-18 12:02:15,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 12:02:15,712 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 12:02:15,712 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 12:02:15,712 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 12:02:15,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 12:02:15,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1279204204, now seen corresponding path program 1 times [2019-12-18 12:02:15,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 12:02:15,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359772288] [2019-12-18 12:02:15,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 12:02:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 12:02:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 12:02:15,732 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359772288] [2019-12-18 12:02:15,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 12:02:15,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 12:02:15,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501383079] [2019-12-18 12:02:15,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 12:02:15,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 12:02:15,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 12:02:15,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 12:02:15,735 INFO L87 Difference]: Start difference. First operand 162377 states and 896814 transitions. Second operand 3 states. [2019-12-18 12:02:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 12:02:16,140 INFO L93 Difference]: Finished difference Result 59375 states and 319532 transitions. [2019-12-18 12:02:16,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 12:02:16,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 12:02:16,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 12:02:16,337 INFO L225 Difference]: With dead ends: 59375 [2019-12-18 12:02:16,337 INFO L226 Difference]: Without dead ends: 59375 [2019-12-18 12:02:16,338 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 12:02:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59375 states. [2019-12-18 12:02:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59375 to 59375. [2019-12-18 12:02:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59375 states. [2019-12-18 12:02:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59375 states to 59375 states and 319532 transitions. [2019-12-18 12:02:25,920 INFO L78 Accepts]: Start accepts. Automaton has 59375 states and 319532 transitions. Word has length 10 [2019-12-18 12:02:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 12:02:25,921 INFO L462 AbstractCegarLoop]: Abstraction has 59375 states and 319532 transitions. [2019-12-18 12:02:25,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 12:02:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 59375 states and 319532 transitions. [2019-12-18 12:02:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-18 12:02:25,931 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 12:02:25,931 INFO L411 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 12:02:25,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 12:02:25,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 12:02:25,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1241855561, now seen corresponding path program 1 times [2019-12-18 12:02:25,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 12:02:25,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018474212] [2019-12-18 12:02:25,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 12:02:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 12:02:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 12:02:25,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 12:02:25,952 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 12:02:25,952 WARN L364 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 12:02:25,952 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2019-12-18 12:02:25,960 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,960 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,960 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,960 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,960 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,977 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,978 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,979 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,979 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,981 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,981 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,982 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,983 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,983 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,983 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,984 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,985 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,985 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,986 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,986 WARN L315 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,986 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,986 WARN L315 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 12:02:25,988 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-12-18 12:02:25,988 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 12:02:25,988 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 12:02:25,988 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 12:02:25,988 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 12:02:25,988 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 12:02:25,988 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 12:02:25,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 12:02:25,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 12:02:25,990 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 88 transitions [2019-12-18 12:02:25,990 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 88 transitions [2019-12-18 12:02:26,008 INFO L126 PetriNetUnfolder]: 15/150 cut-off events. [2019-12-18 12:02:26,008 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 12:02:26,011 INFO L76 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 150 events. 15/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 367 event pairs. 119/239 useless extension candidates. Maximal degree in co-relation 164. Up to 16 conditions per place. [2019-12-18 12:02:26,020 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 88 transitions [2019-12-18 12:02:26,038 INFO L126 PetriNetUnfolder]: 15/150 cut-off events. [2019-12-18 12:02:26,038 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 12:02:26,041 INFO L76 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 150 events. 15/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 367 event pairs. 119/239 useless extension candidates. Maximal degree in co-relation 164. Up to 16 conditions per place. [2019-12-18 12:02:26,051 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5040 [2019-12-18 12:02:26,051 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 12:02:27,448 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9552 [2019-12-18 12:02:27,449 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2019-12-18 12:02:27,449 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 51 transitions Received shutdown request... [2019-12-18 12:03:13,838 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 12:03:13,840 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 12:03:13,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:03:13 BasicIcfg [2019-12-18 12:03:13,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 12:03:13,843 INFO L168 Benchmark]: Toolchain (without parser) took 244838.81 ms. Allocated memory was 137.9 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 101.0 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,844 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.91 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 161.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 201.3 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,846 INFO L168 Benchmark]: Boogie Preprocessor took 26.39 ms. Allocated memory is still 201.3 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,847 INFO L168 Benchmark]: RCFGBuilder took 357.81 ms. Allocated memory is still 201.3 MB. Free memory was 158.3 MB in the beginning and 143.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,848 INFO L168 Benchmark]: TraceAbstraction took 243768.21 ms. Allocated memory was 201.3 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 142.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2019-12-18 12:03:13,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.91 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 161.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 201.3 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.39 ms. Allocated memory is still 201.3 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.81 ms. Allocated memory is still 201.3 MB. Free memory was 158.3 MB in the beginning and 143.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243768.21 ms. Allocated memory was 201.3 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 142.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 29 ProgramPointsBefore, 9 ProgramPointsAfterwards, 28 TransitionsBefore, 8 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 114 CheckedPairsTotal, 22 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 40 ProgramPointsBefore, 17 ProgramPointsAfterwards, 38 TransitionsBefore, 16 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 295 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 736 CheckedPairsTotal, 28 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 51 ProgramPointsBefore, 23 ProgramPointsAfterwards, 48 TransitionsBefore, 22 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 546 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1503 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 62 ProgramPointsBefore, 31 ProgramPointsAfterwards, 58 TransitionsBefore, 29 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 861 VarBasedMoverChecksPositive, 115 VarBasedMoverChecksNegative, 97 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2959 CheckedPairsTotal, 41 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 73 ProgramPointsBefore, 37 ProgramPointsAfterwards, 68 TransitionsBefore, 35 TransitionsAfterwards, 2700 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 1298 VarBasedMoverChecksPositive, 166 VarBasedMoverChecksNegative, 145 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 4542 CheckedPairsTotal, 49 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 84 ProgramPointsBefore, 46 ProgramPointsAfterwards, 78 TransitionsBefore, 46 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 1867 VarBasedMoverChecksPositive, 419 VarBasedMoverChecksNegative, 454 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 0 MoverChecksTotal, 6986 CheckedPairsTotal, 57 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 95 ProgramPointsBefore, 52 ProgramPointsAfterwards, 88 TransitionsBefore, 51 TransitionsAfterwards, 5040 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 2420 VarBasedMoverChecksPositive, 345 VarBasedMoverChecksNegative, 322 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 9552 CheckedPairsTotal, 65 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 677]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 677). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 52 places, 51 transitions. Already constructed 143741 states. Currently 48782 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Result: TIMEOUT, OverallTime: 47.8s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown