/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:41:42,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:41:42,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:41:42,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-06 01:41:42,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:41:42,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:41:42,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:41:42,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:41:42,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:41:42,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:41:42,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:41:42,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:41:42,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:41:42,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:41:42,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:41:42,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:41:42,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 01:41:42,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:41:42,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:41:42,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:41:42,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 01:41:42,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:41:42,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:41:42,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:41:42,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:41:42,249 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:41:42,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:41:42,250 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:41:42,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:41:42,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:41:42,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:41:42,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:41:42,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:42,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:41:42,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:41:42,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:41:42,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:41:42,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:41:42,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:41:42,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:41:42,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:41:42,561 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:41:42,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-06 01:41:43,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:41:43,815 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:41:43,816 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-06 01:41:43,826 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c68d1a6/afeebca995da4264b0cfb9ac4c3559eb/FLAG003fbae66 [2022-12-06 01:41:43,836 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c68d1a6/afeebca995da4264b0cfb9ac4c3559eb [2022-12-06 01:41:43,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:41:43,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:41:43,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:43,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:41:43,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:41:43,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:43" (1/1) ... [2022-12-06 01:41:43,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69af1aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:43, skipping insertion in model container [2022-12-06 01:41:43,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:43" (1/1) ... [2022-12-06 01:41:43,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:41:43,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:41:44,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-06 01:41:44,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:44,169 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:41:44,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-06 01:41:44,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:44,247 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:41:44,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44 WrapperNode [2022-12-06 01:41:44,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:44,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:44,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:41:44,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:41:44,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,297 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-06 01:41:44,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:44,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:41:44,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:41:44,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:41:44,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:41:44,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:41:44,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:41:44,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:41:44,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (1/1) ... [2022-12-06 01:41:44,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:41:44,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 01:41:44,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 01:41:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:41:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:41:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:41:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:41:44,410 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 01:41:44,505 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:41:44,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:41:44,673 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:41:44,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:41:44,682 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-06 01:41:44,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:44 BoogieIcfgContainer [2022-12-06 01:41:44,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:41:44,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:41:44,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:41:44,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:41:44,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:41:43" (1/3) ... [2022-12-06 01:41:44,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149bd254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:44, skipping insertion in model container [2022-12-06 01:41:44,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:44" (2/3) ... [2022-12-06 01:41:44,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149bd254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:44, skipping insertion in model container [2022-12-06 01:41:44,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:44" (3/3) ... [2022-12-06 01:41:44,689 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-06 01:41:44,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:41:44,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:41:44,700 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:41:44,766 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 01:41:44,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2022-12-06 01:41:44,827 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2022-12-06 01:41:44,827 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:41:44,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-06 01:41:44,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2022-12-06 01:41:44,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2022-12-06 01:41:44,835 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:44,847 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-06 01:41:44,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 94 transitions, 191 flow [2022-12-06 01:41:44,868 INFO L130 PetriNetUnfolder]: 9/94 cut-off events. [2022-12-06 01:41:44,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:44,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 9/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2022-12-06 01:41:44,870 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 94 transitions, 191 flow [2022-12-06 01:41:44,871 INFO L188 LiptonReduction]: Number of co-enabled transitions 1452 [2022-12-06 01:41:48,680 INFO L203 LiptonReduction]: Total number of compositions: 74 [2022-12-06 01:41:48,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:41:48,708 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5aa7ed92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:41:48,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 01:41:48,712 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-12-06 01:41:48,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:48,712 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:48,713 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 01:41:48,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash 369671217, now seen corresponding path program 1 times [2022-12-06 01:41:48,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:48,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087503126] [2022-12-06 01:41:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:48,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:41:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:41:49,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:41:49,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087503126] [2022-12-06 01:41:49,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087503126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:41:49,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:41:49,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 01:41:49,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701278237] [2022-12-06 01:41:49,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:41:49,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:41:49,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:41:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:41:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:41:49,106 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-06 01:41:49,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:41:49,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-06 01:41:49,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:41:49,159 INFO L130 PetriNetUnfolder]: 51/143 cut-off events. [2022-12-06 01:41:49,159 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:49,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 143 events. 51/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 523 event pairs, 19 based on Foata normal form. 16/147 useless extension candidates. Maximal degree in co-relation 265. Up to 64 conditions per place. [2022-12-06 01:41:49,160 INFO L137 encePairwiseOnDemand]: 14/28 looper letters, 12 selfloop transitions, 2 changer transitions 12/28 dead transitions. [2022-12-06 01:41:49,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 28 transitions, 109 flow [2022-12-06 01:41:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:41:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:41:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2022-12-06 01:41:49,168 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2022-12-06 01:41:49,170 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2022-12-06 01:41:49,170 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:49,171 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 28 transitions, 109 flow [2022-12-06 01:41:49,173 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 28 transitions, 109 flow [2022-12-06 01:41:49,173 INFO L188 LiptonReduction]: Number of co-enabled transitions 54 [2022-12-06 01:41:49,258 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 01:41:49,259 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 89 [2022-12-06 01:41:49,259 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 26 transitions, 105 flow [2022-12-06 01:41:49,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,259 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:49,259 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:41:49,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:41:49,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:49,260 INFO L85 PathProgramCache]: Analyzing trace with hash 652169169, now seen corresponding path program 1 times [2022-12-06 01:41:49,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:49,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287570237] [2022-12-06 01:41:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:49,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:41:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:41:49,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:41:49,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287570237] [2022-12-06 01:41:49,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287570237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:41:49,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:41:49,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:41:49,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739324297] [2022-12-06 01:41:49,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:41:49,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:41:49,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:41:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:41:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:41:49,308 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 19 [2022-12-06 01:41:49,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 26 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:41:49,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 19 [2022-12-06 01:41:49,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:41:49,343 INFO L130 PetriNetUnfolder]: 41/119 cut-off events. [2022-12-06 01:41:49,343 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 01:41:49,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 119 events. 41/119 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 413 event pairs, 5 based on Foata normal form. 3/112 useless extension candidates. Maximal degree in co-relation 329. Up to 60 conditions per place. [2022-12-06 01:41:49,344 INFO L137 encePairwiseOnDemand]: 12/19 looper letters, 14 selfloop transitions, 5 changer transitions 19/38 dead transitions. [2022-12-06 01:41:49,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 38 transitions, 223 flow [2022-12-06 01:41:49,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:41:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:41:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-06 01:41:49,346 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2022-12-06 01:41:49,347 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2022-12-06 01:41:49,347 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:49,347 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 38 transitions, 223 flow [2022-12-06 01:41:49,348 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 38 transitions, 223 flow [2022-12-06 01:41:49,348 INFO L188 LiptonReduction]: Number of co-enabled transitions 4 [2022-12-06 01:41:49,348 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:41:49,349 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 01:41:49,349 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 38 transitions, 223 flow [2022-12-06 01:41:49,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,349 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:49,349 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:41:49,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:41:49,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:49,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1929046077, now seen corresponding path program 1 times [2022-12-06 01:41:49,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:49,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64858951] [2022-12-06 01:41:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:49,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:41:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:41:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:41:49,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64858951] [2022-12-06 01:41:49,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64858951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:41:49,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:41:49,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:41:49,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314184755] [2022-12-06 01:41:49,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:41:49,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:41:49,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:41:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:41:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:41:49,464 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-06 01:41:49,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 38 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:41:49,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-06 01:41:49,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:41:49,511 INFO L130 PetriNetUnfolder]: 12/55 cut-off events. [2022-12-06 01:41:49,511 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 01:41:49,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 55 events. 12/55 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 4 based on Foata normal form. 4/55 useless extension candidates. Maximal degree in co-relation 189. Up to 34 conditions per place. [2022-12-06 01:41:49,512 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 9 selfloop transitions, 4 changer transitions 9/22 dead transitions. [2022-12-06 01:41:49,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 169 flow [2022-12-06 01:41:49,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 01:41:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 01:41:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-06 01:41:49,513 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2022-12-06 01:41:49,514 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2022-12-06 01:41:49,514 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:49,514 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 169 flow [2022-12-06 01:41:49,515 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 169 flow [2022-12-06 01:41:49,515 INFO L188 LiptonReduction]: Number of co-enabled transitions 2 [2022-12-06 01:41:49,566 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 01:41:49,567 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-06 01:41:49,567 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 163 flow [2022-12-06 01:41:49,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,567 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:49,567 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:41:49,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 01:41:49,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1209736702, now seen corresponding path program 1 times [2022-12-06 01:41:49,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:49,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070912949] [2022-12-06 01:41:49,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:49,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:41:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:41:49,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:41:49,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070912949] [2022-12-06 01:41:49,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070912949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:41:49,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:41:49,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 01:41:49,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874464892] [2022-12-06 01:41:49,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:41:49,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:41:49,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:41:49,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:41:49,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:41:49,866 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 01:41:49,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 163 flow. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:41:49,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 01:41:49,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:41:49,978 INFO L130 PetriNetUnfolder]: 12/50 cut-off events. [2022-12-06 01:41:49,978 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 01:41:49,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 50 events. 12/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 220. Up to 29 conditions per place. [2022-12-06 01:41:49,980 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2022-12-06 01:41:49,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 259 flow [2022-12-06 01:41:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 01:41:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 01:41:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2022-12-06 01:41:49,984 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.19852941176470587 [2022-12-06 01:41:49,985 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2022-12-06 01:41:49,985 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:49,985 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 28 transitions, 259 flow [2022-12-06 01:41:49,986 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 28 transitions, 259 flow [2022-12-06 01:41:49,987 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:41:49,987 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:41:49,992 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 01:41:49,993 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 259 flow [2022-12-06 01:41:49,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:41:49,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 01:41:49,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 01:41:49,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 01:41:49,995 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 01:41:49,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:41:49,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:41:50,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:41:49 BasicIcfg [2022-12-06 01:41:50,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:41:50,000 INFO L158 Benchmark]: Toolchain (without parser) took 6161.55ms. Allocated memory was 255.9MB in the beginning and 384.8MB in the end (delta: 129.0MB). Free memory was 214.1MB in the beginning and 342.4MB in the end (delta: -128.3MB). Peak memory consumption was 1.7MB. Max. memory is 8.0GB. [2022-12-06 01:41:50,000 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 232.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:41:50,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.73ms. Allocated memory is still 255.9MB. Free memory was 213.6MB in the beginning and 193.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 01:41:50,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.33ms. Allocated memory is still 255.9MB. Free memory was 193.7MB in the beginning and 191.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:41:50,001 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 255.9MB. Free memory was 191.6MB in the beginning and 190.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:41:50,001 INFO L158 Benchmark]: RCFGBuilder took 347.26ms. Allocated memory is still 255.9MB. Free memory was 190.0MB in the beginning and 174.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 01:41:50,001 INFO L158 Benchmark]: TraceAbstraction took 5314.63ms. Allocated memory was 255.9MB in the beginning and 384.8MB in the end (delta: 129.0MB). Free memory was 174.3MB in the beginning and 342.4MB in the end (delta: -168.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:41:50,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 232.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 408.73ms. Allocated memory is still 255.9MB. Free memory was 213.6MB in the beginning and 193.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.33ms. Allocated memory is still 255.9MB. Free memory was 193.7MB in the beginning and 191.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 255.9MB. Free memory was 191.6MB in the beginning and 190.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 347.26ms. Allocated memory is still 255.9MB. Free memory was 190.0MB in the beginning and 174.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5314.63ms. Allocated memory was 255.9MB in the beginning and 384.8MB in the end (delta: 129.0MB). Free memory was 174.3MB in the beginning and 342.4MB in the end (delta: -168.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 89 PlacesBefore, 23 PlacesAfterwards, 94 TransitionsBefore, 28 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 30 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1248, independent: 1177, independent conditional: 1177, independent unconditional: 0, dependent: 71, dependent conditional: 71, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1248, independent: 1177, independent conditional: 0, independent unconditional: 1177, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1248, independent: 1177, independent conditional: 0, independent unconditional: 1177, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1248, independent: 1177, independent conditional: 0, independent unconditional: 1177, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1015, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1015, independent: 926, independent conditional: 0, independent unconditional: 926, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1248, independent: 196, independent conditional: 0, independent unconditional: 196, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 1015, unknown conditional: 0, unknown unconditional: 1015] , Statistics on independence cache: Total cache size (in pairs): 1671, Positive cache size: 1637, Positive conditional cache size: 0, Positive unconditional cache size: 1637, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 25 PlacesBefore, 23 PlacesAfterwards, 28 TransitionsBefore, 26 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 25 PlacesBefore, 25 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 28 PlacesBefore, 27 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 691]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=4, InterpolantAutomatonStates: 18, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 01:41:50,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...