/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:29:23,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:29:23,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 18:29:23,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:29:23,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:29:23,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:29:23,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:29:23,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:29:23,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:29:23,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:29:23,764 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:29:23,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:29:23,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:29:23,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:29:23,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:29:23,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:29:23,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:29:23,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:29:23,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:29:23,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:29:23,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:29:23,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:29:23,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:29:23,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:29:23,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:29:23,768 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:29:23,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:29:23,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:29:23,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:29:23,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:29:23,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:29:23,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:29:23,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:29:23,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:29:23,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:29:23,770 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:29:24,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:29:24,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:29:24,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:29:24,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:29:24,039 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:29:24,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-08-25 18:29:25,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:29:25,349 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:29:25,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-08-25 18:29:25,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89eed31c1/e4052034d4a64117ba8d73cbd842d30d/FLAGa785b8ece [2023-08-25 18:29:25,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89eed31c1/e4052034d4a64117ba8d73cbd842d30d [2023-08-25 18:29:25,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:29:25,380 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:29:25,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:29:25,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:29:25,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:29:25,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:25,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc8e581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25, skipping insertion in model container [2023-08-25 18:29:25,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:25,423 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:29:25,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:29:25,843 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:29:25,864 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 18:29:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 18:29:25,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:29:25,930 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:29:25,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25 WrapperNode [2023-08-25 18:29:25,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:29:25,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:29:25,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:29:25,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:29:25,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:25,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,003 INFO L138 Inliner]: procedures = 278, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 349 [2023-08-25 18:29:26,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:29:26,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:29:26,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:29:26,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:29:26,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:29:26,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:29:26,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:29:26,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:29:26,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (1/1) ... [2023-08-25 18:29:26,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:29:26,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:29:26,098 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) [2023-08-25 18:29:26,104 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 [2023-08-25 18:29:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:29:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 18:29:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-25 18:29:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-25 18:29:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:29:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 18:29:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-25 18:29:26,125 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-25 18:29:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:29:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 18:29:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 18:29:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:29:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 18:29:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:29:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:29:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:29:26,127 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 18:29:26,279 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:29:26,280 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:29:26,679 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:29:26,685 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:29:26,685 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-25 18:29:26,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:29:26 BoogieIcfgContainer [2023-08-25 18:29:26,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:29:26,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:29:26,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:29:26,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:29:26,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:29:25" (1/3) ... [2023-08-25 18:29:26,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e117a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:29:26, skipping insertion in model container [2023-08-25 18:29:26,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:29:25" (2/3) ... [2023-08-25 18:29:26,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e117a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:29:26, skipping insertion in model container [2023-08-25 18:29:26,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:29:26" (3/3) ... [2023-08-25 18:29:26,691 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2023-08-25 18:29:26,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:29:26,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-25 18:29:26,701 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:29:26,795 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 18:29:26,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 349 places, 370 transitions, 762 flow [2023-08-25 18:29:27,028 INFO L124 PetriNetUnfolderBase]: 56/670 cut-off events. [2023-08-25 18:29:27,028 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2023-08-25 18:29:27,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 670 events. 56/670 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3190 event pairs, 0 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 335. Up to 8 conditions per place. [2023-08-25 18:29:27,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 349 places, 370 transitions, 762 flow [2023-08-25 18:29:27,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 365 transitions, 746 flow [2023-08-25 18:29:27,051 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:29:27,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 346 places, 365 transitions, 746 flow [2023-08-25 18:29:27,066 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 346 places, 365 transitions, 746 flow [2023-08-25 18:29:27,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 365 transitions, 746 flow [2023-08-25 18:29:27,158 INFO L124 PetriNetUnfolderBase]: 52/655 cut-off events. [2023-08-25 18:29:27,158 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-08-25 18:29:27,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 655 events. 52/655 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2900 event pairs, 0 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 323. Up to 8 conditions per place. [2023-08-25 18:29:27,187 INFO L119 LiptonReduction]: Number of co-enabled transitions 46860 [2023-08-25 18:29:41,706 WARN L234 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 148 DAG size of output: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:29:51,883 WARN L234 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 148 DAG size of output: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:29:55,233 INFO L134 LiptonReduction]: Checked pairs total: 196371 [2023-08-25 18:29:55,233 INFO L136 LiptonReduction]: Total number of compositions: 229 [2023-08-25 18:29:55,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 18:29:55,255 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=PETRI_NET, 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;@13dc0be5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 18:29:55,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-25 18:29:55,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 18:29:55,260 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2023-08-25 18:29:55,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:29:55,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:29:55,260 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-25 18:29:55,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 18:29:55,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:29:55,263 INFO L85 PathProgramCache]: Analyzing trace with hash 506119759, now seen corresponding path program 1 times [2023-08-25 18:29:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:29:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235071483] [2023-08-25 18:29:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:29:55,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:29:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:29:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:55,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:29:55,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235071483] [2023-08-25 18:29:55,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235071483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:29:55,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:29:55,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:29:55,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546829551] [2023-08-25 18:29:55,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:29:55,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:29:55,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:29:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:29:55,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:29:55,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 599 [2023-08-25 18:29:55,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 161 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 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) [2023-08-25 18:29:55,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:29:55,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 599 [2023-08-25 18:29:55,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:29:57,248 INFO L124 PetriNetUnfolderBase]: 7645/19644 cut-off events. [2023-08-25 18:29:57,249 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-25 18:29:57,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31531 conditions, 19644 events. 7645/19644 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 189195 event pairs, 7264 based on Foata normal form. 984/18206 useless extension candidates. Maximal degree in co-relation 29849. Up to 11782 conditions per place. [2023-08-25 18:29:57,301 INFO L140 encePairwiseOnDemand]: 585/599 looper letters, 51 selfloop transitions, 2 changer transitions 21/151 dead transitions. [2023-08-25 18:29:57,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 151 transitions, 442 flow [2023-08-25 18:29:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:29:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:29:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1064 transitions. [2023-08-25 18:29:57,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5920979410127991 [2023-08-25 18:29:57,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1064 transitions. [2023-08-25 18:29:57,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1064 transitions. [2023-08-25 18:29:57,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:29:57,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1064 transitions. [2023-08-25 18:29:57,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 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) [2023-08-25 18:29:57,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 599.0) internal successors, (2396), 4 states have internal predecessors, (2396), 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) [2023-08-25 18:29:57,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 599.0) internal successors, (2396), 4 states have internal predecessors, (2396), 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) [2023-08-25 18:29:57,333 INFO L175 Difference]: Start difference. First operand has 150 places, 161 transitions, 338 flow. Second operand 3 states and 1064 transitions. [2023-08-25 18:29:57,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 151 transitions, 442 flow [2023-08-25 18:29:57,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 151 transitions, 442 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:29:57,345 INFO L231 Difference]: Finished difference. Result has 153 places, 130 transitions, 280 flow [2023-08-25 18:29:57,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=599, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=153, PETRI_TRANSITIONS=130} [2023-08-25 18:29:57,350 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, 3 predicate places. [2023-08-25 18:29:57,350 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 130 transitions, 280 flow [2023-08-25 18:29:57,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 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) [2023-08-25 18:29:57,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:29:57,351 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-25 18:29:57,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 18:29:57,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 18:29:57,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:29:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -760317476, now seen corresponding path program 1 times [2023-08-25 18:29:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:29:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6512732] [2023-08-25 18:29:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:29:57,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:29:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:29:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:57,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:29:57,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6512732] [2023-08-25 18:29:57,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6512732] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 18:29:57,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312873508] [2023-08-25 18:29:57,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:29:57,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 18:29:57,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:29:57,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 18:29:57,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 18:29:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:29:57,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 18:29:57,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 18:29:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:57,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 18:29:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:57,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312873508] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 18:29:57,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 18:29:57,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 18:29:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758673312] [2023-08-25 18:29:57,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 18:29:57,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 18:29:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:29:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 18:29:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 18:29:57,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 599 [2023-08-25 18:29:57,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 130 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 331.57142857142856) internal successors, (2321), 7 states have internal predecessors, (2321), 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) [2023-08-25 18:29:57,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:29:57,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 599 [2023-08-25 18:29:57,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:29:58,549 INFO L124 PetriNetUnfolderBase]: 3121/8437 cut-off events. [2023-08-25 18:29:58,558 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-25 18:29:58,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13461 conditions, 8437 events. 3121/8437 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 70914 event pairs, 2976 based on Foata normal form. 0/7515 useless extension candidates. Maximal degree in co-relation 13448. Up to 4958 conditions per place. [2023-08-25 18:29:58,609 INFO L140 encePairwiseOnDemand]: 596/599 looper letters, 51 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2023-08-25 18:29:58,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 404 flow [2023-08-25 18:29:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:29:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:29:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2039 transitions. [2023-08-25 18:29:58,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5673344462993879 [2023-08-25 18:29:58,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2039 transitions. [2023-08-25 18:29:58,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2039 transitions. [2023-08-25 18:29:58,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:29:58,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2039 transitions. [2023-08-25 18:29:58,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 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) [2023-08-25 18:29:58,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 599.0) internal successors, (4193), 7 states have internal predecessors, (4193), 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) [2023-08-25 18:29:58,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 599.0) internal successors, (4193), 7 states have internal predecessors, (4193), 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) [2023-08-25 18:29:58,624 INFO L175 Difference]: Start difference. First operand has 153 places, 130 transitions, 280 flow. Second operand 6 states and 2039 transitions. [2023-08-25 18:29:58,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 404 flow [2023-08-25 18:29:58,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 133 transitions, 400 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 18:29:58,627 INFO L231 Difference]: Finished difference. Result has 141 places, 133 transitions, 312 flow [2023-08-25 18:29:58,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=599, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=141, PETRI_TRANSITIONS=133} [2023-08-25 18:29:58,628 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, -9 predicate places. [2023-08-25 18:29:58,628 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 133 transitions, 312 flow [2023-08-25 18:29:58,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 331.57142857142856) internal successors, (2321), 7 states have internal predecessors, (2321), 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) [2023-08-25 18:29:58,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:29:58,629 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-08-25 18:29:58,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 18:29:58,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 18:29:58,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 18:29:58,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:29:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -79576689, now seen corresponding path program 2 times [2023-08-25 18:29:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:29:58,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731956814] [2023-08-25 18:29:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:29:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:29:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:29:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:29:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731956814] [2023-08-25 18:29:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731956814] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 18:29:58,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58983261] [2023-08-25 18:29:58,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 18:29:58,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 18:29:58,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:29:59,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 18:29:59,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 18:29:59,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 18:29:59,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 18:29:59,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 18:29:59,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 18:29:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:59,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 18:29:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:29:59,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58983261] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 18:29:59,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 18:29:59,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 18:29:59,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899314274] [2023-08-25 18:29:59,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 18:29:59,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 18:29:59,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:29:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 18:29:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 18:29:59,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 599 [2023-08-25 18:29:59,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 312 flow. Second operand has 13 states, 13 states have (on average 331.3076923076923) internal successors, (4307), 13 states have internal predecessors, (4307), 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) [2023-08-25 18:29:59,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:29:59,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 599 [2023-08-25 18:29:59,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:30:00,441 INFO L124 PetriNetUnfolderBase]: 3121/8482 cut-off events. [2023-08-25 18:30:00,442 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-25 18:30:00,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13531 conditions, 8482 events. 3121/8482 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 71372 event pairs, 2976 based on Foata normal form. 6/7576 useless extension candidates. Maximal degree in co-relation 13472. Up to 4958 conditions per place. [2023-08-25 18:30:00,467 INFO L140 encePairwiseOnDemand]: 596/599 looper letters, 51 selfloop transitions, 11 changer transitions 0/139 dead transitions. [2023-08-25 18:30:00,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 139 transitions, 472 flow [2023-08-25 18:30:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 18:30:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 18:30:00,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4028 transitions. [2023-08-25 18:30:00,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.560378408458542 [2023-08-25 18:30:00,475 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4028 transitions. [2023-08-25 18:30:00,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4028 transitions. [2023-08-25 18:30:00,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:30:00,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4028 transitions. [2023-08-25 18:30:00,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 335.6666666666667) internal successors, (4028), 12 states have internal predecessors, (4028), 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) [2023-08-25 18:30:00,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 599.0) internal successors, (7787), 13 states have internal predecessors, (7787), 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) [2023-08-25 18:30:00,494 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 599.0) internal successors, (7787), 13 states have internal predecessors, (7787), 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) [2023-08-25 18:30:00,495 INFO L175 Difference]: Start difference. First operand has 141 places, 133 transitions, 312 flow. Second operand 12 states and 4028 transitions. [2023-08-25 18:30:00,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 139 transitions, 472 flow [2023-08-25 18:30:00,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 139 transitions, 458 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 18:30:00,498 INFO L231 Difference]: Finished difference. Result has 157 places, 139 transitions, 382 flow [2023-08-25 18:30:00,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=599, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=382, PETRI_PLACES=157, PETRI_TRANSITIONS=139} [2023-08-25 18:30:00,500 INFO L281 CegarLoopForPetriNet]: 150 programPoint places, 7 predicate places. [2023-08-25 18:30:00,500 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 139 transitions, 382 flow [2023-08-25 18:30:00,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 331.3076923076923) internal successors, (4307), 13 states have internal predecessors, (4307), 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) [2023-08-25 18:30:00,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:30:00,502 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-08-25 18:30:00,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-25 18:30:00,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-25 18:30:00,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 18:30:00,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:30:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -870060433, now seen corresponding path program 3 times [2023-08-25 18:30:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:30:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907937818] [2023-08-25 18:30:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:30:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:30:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:30:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:30:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:30:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907937818] [2023-08-25 18:30:01,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907937818] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 18:30:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657117055] [2023-08-25 18:30:01,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 18:30:01,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 18:30:01,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:30:01,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 18:30:01,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2023-08-25 18:44:10,651 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 18:44:10,673 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 18:44:11,699 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 [2023-08-25 18:44:11,852 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2023-08-25 18:44:11,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2023-08-25 18:44:11,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 18:44:11,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-08-25 18:44:11,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-08-25 18:44:11,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730272169] [2023-08-25 18:44:11,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-08-25 18:44:11,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 18:44:11,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:44:11,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 18:44:11,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 18:44:11,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 599 [2023-08-25 18:44:11,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 139 transitions, 382 flow. Second operand has 13 states, 13 states have (on average 331.15384615384613) internal successors, (4305), 13 states have internal predecessors, (4305), 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) [2023-08-25 18:44:11,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:44:11,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 599 [2023-08-25 18:44:11,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:44:11,893 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-25 18:44:11,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 18:44:11,894 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-25 18:44:11,895 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-25 18:44:11,895 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-08-25 18:44:11,896 INFO L307 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT,TIMEOUT (1/2) [2023-08-25 18:44:11,914 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 18:44:11,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 18:44:11,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 06:44:11 BasicIcfg [2023-08-25 18:44:11,931 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 18:44:11,934 INFO L158 Benchmark]: Toolchain (without parser) took 886552.07ms. Allocated memory was 350.2MB in the beginning and 729.8MB in the end (delta: 379.6MB). Free memory was 324.1MB in the beginning and 203.7MB in the end (delta: 120.3MB). Peak memory consumption was 501.5MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,936 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 350.2MB. Free memory is still 326.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:44:11,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.04ms. Allocated memory is still 350.2MB. Free memory was 324.1MB in the beginning and 286.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.63ms. Allocated memory is still 350.2MB. Free memory was 286.4MB in the beginning and 282.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,937 INFO L158 Benchmark]: Boogie Preprocessor took 60.23ms. Allocated memory is still 350.2MB. Free memory was 282.2MB in the beginning and 277.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,937 INFO L158 Benchmark]: RCFGBuilder took 621.25ms. Allocated memory is still 350.2MB. Free memory was 277.6MB in the beginning and 293.6MB in the end (delta: -15.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,937 INFO L158 Benchmark]: TraceAbstraction took 885244.02ms. Allocated memory was 350.2MB in the beginning and 729.8MB in the end (delta: 379.6MB). Free memory was 292.6MB in the beginning and 203.7MB in the end (delta: 88.9MB). Peak memory consumption was 467.3MB. Max. memory is 16.0GB. [2023-08-25 18:44:11,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 350.2MB. Free memory is still 326.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 550.04ms. Allocated memory is still 350.2MB. Free memory was 324.1MB in the beginning and 286.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.63ms. Allocated memory is still 350.2MB. Free memory was 286.4MB in the beginning and 282.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.23ms. Allocated memory is still 350.2MB. Free memory was 282.2MB in the beginning and 277.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 621.25ms. Allocated memory is still 350.2MB. Free memory was 277.6MB in the beginning and 293.6MB in the end (delta: -15.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.0GB. * TraceAbstraction took 885244.02ms. Allocated memory was 350.2MB in the beginning and 729.8MB in the end (delta: 379.6MB). Free memory was 292.6MB in the beginning and 203.7MB in the end (delta: 88.9MB). Peak memory consumption was 467.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2s, 346 PlacesBefore, 150 PlacesAfterwards, 365 TransitionsBefore, 161 TransitionsAfterwards, 46860 CoEnabledTransitionPairs, 6 FixpointIterations, 66 TrivialSequentialCompositions, 134 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 19 ConcurrentYvCompositions, 8 ChoiceCompositions, 229 TotalNumberOfCompositions, 196371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37426, independent: 35790, independent conditional: 0, independent unconditional: 35790, dependent: 1636, dependent conditional: 0, dependent unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19721, independent: 19500, independent conditional: 0, independent unconditional: 19500, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37426, independent: 16290, independent conditional: 0, independent unconditional: 16290, dependent: 1415, dependent conditional: 0, dependent unconditional: 1415, unknown: 19721, unknown conditional: 0, unknown unconditional: 19721] , Statistics on independence cache: Total cache size (in pairs): 1739, Positive cache size: 1582, Positive conditional cache size: 0, Positive unconditional cache size: 1582, Negative cache size: 157, Negative conditional cache size: 0, Negative unconditional cache size: 157, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 554 locations, 37 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: 885.1s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 28.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 490 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 490 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=3, InterpolantAutomatonStates: 21, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 823 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 16/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown