/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 PROGRAM_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/pthread-ext/36_stack_cas_p0_vs_concur.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:15:51,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:15:51,705 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 22:15:51,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:15:51,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:15:51,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:15:51,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:15:51,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:15:51,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:15:51,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:15:51,744 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:15:51,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:15:51,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:15:51,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:15:51,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:15:51,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:15:51,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:15:51,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:15:51,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:15:51,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:15:51,747 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:15:51,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:15:51,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:15:51,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:15:51,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:15:51,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:15:51,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:15:51,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:15:51,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:15:51,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:15:51,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:15:52,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:15:52,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:15:52,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:15:52,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:15:52,044 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:15:52,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/36_stack_cas_p0_vs_concur.i [2023-08-25 22:15:53,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:15:53,235 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:15:53,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/36_stack_cas_p0_vs_concur.i [2023-08-25 22:15:53,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32af34d5/353df0cfb4a54847aa80805b379f447c/FLAG41c9fee4e [2023-08-25 22:15:53,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32af34d5/353df0cfb4a54847aa80805b379f447c [2023-08-25 22:15:53,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:15:53,261 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:15:53,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:15:53,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:15:53,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:15:53,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f53af45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53, skipping insertion in model container [2023-08-25 22:15:53,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,288 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:15:53,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:15:53,561 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:15:53,583 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-25 22:15:53,584 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-25 22:15:53,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:15:53,639 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:15:53,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53 WrapperNode [2023-08-25 22:15:53,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:15:53,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:15:53,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:15:53,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:15:53,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,699 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 198 [2023-08-25 22:15:53,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:15:53,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:15:53,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:15:53,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:15:53,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:15:53,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:15:53,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:15:53,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:15:53,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (1/1) ... [2023-08-25 22:15:53,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:15:53,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:15:53,782 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 22:15:53,813 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 22:15:53,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 22:15:53,833 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:15:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:15:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:15:53,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:15:53,835 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 22:15:53,976 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:15:53,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:15:54,265 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:15:54,397 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:15:54,397 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 22:15:54,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:15:54 BoogieIcfgContainer [2023-08-25 22:15:54,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:15:54,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:15:54,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:15:54,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:15:54,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:15:53" (1/3) ... [2023-08-25 22:15:54,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:15:54, skipping insertion in model container [2023-08-25 22:15:54,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:15:53" (2/3) ... [2023-08-25 22:15:54,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:15:54, skipping insertion in model container [2023-08-25 22:15:54,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:15:54" (3/3) ... [2023-08-25 22:15:54,407 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2023-08-25 22:15:54,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:15:54,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-25 22:15:54,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:15:54,489 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 22:15:54,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,585 INFO L124 PetriNetUnfolderBase]: 11/167 cut-off events. [2023-08-25 22:15:54,585 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:15:54,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 11/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 140. Up to 4 conditions per place. [2023-08-25 22:15:54,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,599 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:15:54,608 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,610 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 157 transitions, 319 flow [2023-08-25 22:15:54,649 INFO L124 PetriNetUnfolderBase]: 11/167 cut-off events. [2023-08-25 22:15:54,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:15:54,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 11/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 140. Up to 4 conditions per place. [2023-08-25 22:15:54,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 3328 [2023-08-25 22:16:20,714 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 126 DAG size of output: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 22:16:30,389 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 121 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 22:16:40,339 WARN L234 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 125 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 22:16:45,017 INFO L134 LiptonReduction]: Checked pairs total: 4635 [2023-08-25 22:16:45,017 INFO L136 LiptonReduction]: Total number of compositions: 188 [2023-08-25 22:16:45,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:16:45,029 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;@4abf7dca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:16:45,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-25 22:16:45,031 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:16:45,031 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-08-25 22:16:45,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:16:45,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:45,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 22:16:45,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:45,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash 832957457, now seen corresponding path program 1 times [2023-08-25 22:16:45,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267160260] [2023-08-25 22:16:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:45,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267160260] [2023-08-25 22:16:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267160260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:16:45,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:16:45,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 22:16:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6231270] [2023-08-25 22:16:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:16:45,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:16:45,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:16:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:16:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:16:45,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 345 [2023-08-25 22:16:45,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 47 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 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 22:16:45,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:16:45,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 345 [2023-08-25 22:16:45,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:16:45,246 INFO L124 PetriNetUnfolderBase]: 44/107 cut-off events. [2023-08-25 22:16:45,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:16:45,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 107 events. 44/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 35 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 200. Up to 103 conditions per place. [2023-08-25 22:16:45,248 INFO L140 encePairwiseOnDemand]: 325/345 looper letters, 24 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-25 22:16:45,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 107 flow [2023-08-25 22:16:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:16:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:16:45,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 312 transitions. [2023-08-25 22:16:45,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45217391304347826 [2023-08-25 22:16:45,264 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 312 transitions. [2023-08-25 22:16:45,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 312 transitions. [2023-08-25 22:16:45,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:16:45,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 312 transitions. [2023-08-25 22:16:45,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 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 22:16:45,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 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 22:16:45,275 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 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 22:16:45,276 INFO L175 Difference]: Start difference. First operand has 46 places, 47 transitions, 99 flow. Second operand 2 states and 312 transitions. [2023-08-25 22:16:45,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 107 flow [2023-08-25 22:16:45,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 107 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:16:45,280 INFO L231 Difference]: Finished difference. Result has 28 places, 27 transitions, 59 flow [2023-08-25 22:16:45,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=27} [2023-08-25 22:16:45,284 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -18 predicate places. [2023-08-25 22:16:45,285 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 27 transitions, 59 flow [2023-08-25 22:16:45,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 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 22:16:45,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:45,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:16:45,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:16:45,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:45,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash -6306740, now seen corresponding path program 1 times [2023-08-25 22:16:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331069704] [2023-08-25 22:16:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:45,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:45,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331069704] [2023-08-25 22:16:45,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331069704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:16:45,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:16:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 22:16:45,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655560266] [2023-08-25 22:16:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:16:45,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:16:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:16:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:16:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:16:45,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 345 [2023-08-25 22:16:45,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 22:16:45,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:16:45,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 345 [2023-08-25 22:16:45,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:16:45,690 INFO L124 PetriNetUnfolderBase]: 41/104 cut-off events. [2023-08-25 22:16:45,690 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:16:45,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 104 events. 41/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 204 event pairs, 33 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 208. Up to 95 conditions per place. [2023-08-25 22:16:45,692 INFO L140 encePairwiseOnDemand]: 343/345 looper letters, 22 selfloop transitions, 0 changer transitions 3/28 dead transitions. [2023-08-25 22:16:45,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 111 flow [2023-08-25 22:16:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:16:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:16:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-25 22:16:45,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4077294685990338 [2023-08-25 22:16:45,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-25 22:16:45,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-25 22:16:45,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:16:45,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-25 22:16:45,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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 22:16:45,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:45,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:45,704 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 59 flow. Second operand 3 states and 422 transitions. [2023-08-25 22:16:45,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 111 flow [2023-08-25 22:16:45,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 111 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:16:45,706 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 55 flow [2023-08-25 22:16:45,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-25 22:16:45,706 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -16 predicate places. [2023-08-25 22:16:45,707 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 55 flow [2023-08-25 22:16:45,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 22:16:45,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:45,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:16:45,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:16:45,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:45,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -6325774, now seen corresponding path program 1 times [2023-08-25 22:16:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:45,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626684574] [2023-08-25 22:16:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:45,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:45,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626684574] [2023-08-25 22:16:45,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626684574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:16:45,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:16:45,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:16:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440812779] [2023-08-25 22:16:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:16:45,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:16:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:16:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:16:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:16:45,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 345 [2023-08-25 22:16:45,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 22:16:45,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:16:45,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 345 [2023-08-25 22:16:45,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:16:46,249 INFO L124 PetriNetUnfolderBase]: 41/104 cut-off events. [2023-08-25 22:16:46,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:16:46,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 104 events. 41/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 23 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 208. Up to 67 conditions per place. [2023-08-25 22:16:46,250 INFO L140 encePairwiseOnDemand]: 341/345 looper letters, 22 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-25 22:16:46,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 111 flow [2023-08-25 22:16:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:16:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:16:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-25 22:16:46,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26280193236714977 [2023-08-25 22:16:46,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-25 22:16:46,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-25 22:16:46,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:16:46,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-25 22:16:46,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 22:16:46,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:46,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:46,255 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 55 flow. Second operand 3 states and 272 transitions. [2023-08-25 22:16:46,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 111 flow [2023-08-25 22:16:46,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 111 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:16:46,256 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 66 flow [2023-08-25 22:16:46,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-25 22:16:46,257 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -16 predicate places. [2023-08-25 22:16:46,257 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 66 flow [2023-08-25 22:16:46,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 22:16:46,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:46,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:16:46,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:16:46,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:46,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:46,259 INFO L85 PathProgramCache]: Analyzing trace with hash 178800077, now seen corresponding path program 1 times [2023-08-25 22:16:46,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:46,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588410969] [2023-08-25 22:16:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:46,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:46,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588410969] [2023-08-25 22:16:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588410969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:16:46,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:16:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:16:46,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458907598] [2023-08-25 22:16:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:16:46,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:16:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:16:46,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:16:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:16:46,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 345 [2023-08-25 22:16:46,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 22:16:46,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:16:46,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 345 [2023-08-25 22:16:46,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:16:46,726 INFO L124 PetriNetUnfolderBase]: 42/109 cut-off events. [2023-08-25 22:16:46,727 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-25 22:16:46,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 109 events. 42/109 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 20 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 233. Up to 59 conditions per place. [2023-08-25 22:16:46,729 INFO L140 encePairwiseOnDemand]: 340/345 looper letters, 21 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-08-25 22:16:46,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 122 flow [2023-08-25 22:16:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:16:46,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:16:46,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-08-25 22:16:46,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2792270531400966 [2023-08-25 22:16:46,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-08-25 22:16:46,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-08-25 22:16:46,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:16:46,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-08-25 22:16:46,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 22:16:46,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:46,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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 22:16:46,733 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 66 flow. Second operand 3 states and 289 transitions. [2023-08-25 22:16:46,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 122 flow [2023-08-25 22:16:46,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 119 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:16:46,735 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 77 flow [2023-08-25 22:16:46,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2023-08-25 22:16:46,736 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2023-08-25 22:16:46,736 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 77 flow [2023-08-25 22:16:46,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 22:16:46,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:46,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:16:46,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:16:46,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err19ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:46,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash 178800140, now seen corresponding path program 1 times [2023-08-25 22:16:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:46,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133096309] [2023-08-25 22:16:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:46,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133096309] [2023-08-25 22:16:47,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133096309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:16:47,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:16:47,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 22:16:47,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782312084] [2023-08-25 22:16:47,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:16:47,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 22:16:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:16:47,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 22:16:47,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-25 22:16:47,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 345 [2023-08-25 22:16:47,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 77 flow. Second operand has 11 states, 11 states have (on average 62.63636363636363) internal successors, (689), 11 states have internal predecessors, (689), 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 22:16:47,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:16:47,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 345 [2023-08-25 22:16:47,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:16:48,290 INFO L124 PetriNetUnfolderBase]: 87/218 cut-off events. [2023-08-25 22:16:48,290 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 22:16:48,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 218 events. 87/218 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 495 event pairs, 2 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 515. Up to 116 conditions per place. [2023-08-25 22:16:48,291 INFO L140 encePairwiseOnDemand]: 333/345 looper letters, 44 selfloop transitions, 26 changer transitions 0/72 dead transitions. [2023-08-25 22:16:48,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 339 flow [2023-08-25 22:16:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 22:16:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 22:16:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2023-08-25 22:16:48,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.19053140096618357 [2023-08-25 22:16:48,308 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 986 transitions. [2023-08-25 22:16:48,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 986 transitions. [2023-08-25 22:16:48,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:16:48,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 986 transitions. [2023-08-25 22:16:48,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 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 22:16:48,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 345.0) internal successors, (5520), 16 states have internal predecessors, (5520), 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 22:16:48,316 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 345.0) internal successors, (5520), 16 states have internal predecessors, (5520), 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 22:16:48,316 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 77 flow. Second operand 15 states and 986 transitions. [2023-08-25 22:16:48,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 339 flow [2023-08-25 22:16:48,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 72 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:16:48,318 INFO L231 Difference]: Finished difference. Result has 51 places, 51 transitions, 250 flow [2023-08-25 22:16:48,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=250, PETRI_PLACES=51, PETRI_TRANSITIONS=51} [2023-08-25 22:16:48,319 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2023-08-25 22:16:48,319 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 51 transitions, 250 flow [2023-08-25 22:16:48,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 62.63636363636363) internal successors, (689), 11 states have internal predecessors, (689), 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 22:16:48,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:16:48,319 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:16:48,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 22:16:48,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err19ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:16:48,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:16:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash 470247249, now seen corresponding path program 1 times [2023-08-25 22:16:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:16:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985612722] [2023-08-25 22:16:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:16:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:48,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:16:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985612722] [2023-08-25 22:16:48,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985612722] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 22:16:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056328213] [2023-08-25 22:16:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:16:48,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 22:16:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:16:48,901 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 22:16:48,971 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 22:16:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:16:49,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 55 conjunts are in the unsatisfiable core [2023-08-25 22:16:49,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 22:16:49,161 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 22:16:49,227 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 22:16:49,228 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-25 22:16:49,295 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 22:16:49,302 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2023-08-25 22:16:49,364 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 22:16:49,542 INFO L322 Elim1Store]: treesize reduction 34, result has 50.7 percent of original size [2023-08-25 22:16:49,543 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 76 [2023-08-25 22:16:49,589 INFO L322 Elim1Store]: treesize reduction 73, result has 35.4 percent of original size [2023-08-25 22:16:49,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 55 treesize of output 105 [2023-08-25 22:16:49,600 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-25 22:16:49,770 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:16:49,771 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2023-08-25 22:16:49,837 INFO L322 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size [2023-08-25 22:16:49,837 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 91 [2023-08-25 22:16:50,217 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 22:16:50,218 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2023-08-25 22:16:50,230 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-25 22:16:50,230 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2023-08-25 22:16:50,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-25 22:16:50,258 INFO L322 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2023-08-25 22:16:50,258 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 44 [2023-08-25 22:16:50,287 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-25 22:16:50,287 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 38 [2023-08-25 22:16:50,310 INFO L322 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2023-08-25 22:16:50,310 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 32 [2023-08-25 22:16:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 22:16:50,328 INFO L322 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-08-25 22:16:50,329 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 1 [2023-08-25 22:16:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:16:50,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 22:16:50,478 INFO L322 Elim1Store]: treesize reduction 44, result has 53.2 percent of original size [2023-08-25 22:16:50,478 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 90 treesize of output 154 [2023-08-25 22:16:50,508 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:16:50,509 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2023-08-25 22:17:17,938 WARN L234 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 35 DAG size of output: 25 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 22:17:42,070 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 22:18:02,493 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_601 (Array Int Int)) (v_ArrVal_611 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_53| Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_601))) (store (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| (select (select .cse0 |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|))) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_53| (store (select (store .cse0 |c_~#top~0.base| v_ArrVal_611) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_53|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| 1))) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-08-25 22:18:02,537 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,538 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 194 [2023-08-25 22:18:02,549 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,549 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 185 [2023-08-25 22:18:02,562 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,563 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-25 22:18:02,670 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 199 [2023-08-25 22:18:02,675 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2023-08-25 22:18:02,687 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 13 [2023-08-25 22:18:02,694 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,695 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2023-08-25 22:18:02,707 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,707 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1167 treesize of output 1125 [2023-08-25 22:18:02,718 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 254 [2023-08-25 22:18:02,722 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 246 [2023-08-25 22:18:02,800 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-08-25 22:18:02,851 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:02,851 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4511 treesize of output 4485 [2023-08-25 22:18:02,897 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1110 treesize of output 1046 [2023-08-25 22:18:02,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1046 treesize of output 1014 [2023-08-25 22:18:02,922 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1014 treesize of output 982 [2023-08-25 22:18:03,014 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-25 22:18:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-25 22:18:03,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056328213] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 22:18:03,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 22:18:03,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2023-08-25 22:18:03,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891602382] [2023-08-25 22:18:03,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 22:18:03,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 22:18:03,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:18:03,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 22:18:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=739, Unknown=31, NotChecked=56, Total=930 [2023-08-25 22:18:03,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 345 [2023-08-25 22:18:03,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 51 transitions, 250 flow. Second operand has 31 states, 31 states have (on average 52.774193548387096) internal successors, (1636), 31 states have internal predecessors, (1636), 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 22:18:03,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:18:03,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 345 [2023-08-25 22:18:03,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:18:04,861 INFO L124 PetriNetUnfolderBase]: 104/295 cut-off events. [2023-08-25 22:18:04,862 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-08-25 22:18:04,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 295 events. 104/295 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 958 event pairs, 3 based on Foata normal form. 1/282 useless extension candidates. Maximal degree in co-relation 902. Up to 105 conditions per place. [2023-08-25 22:18:04,863 INFO L140 encePairwiseOnDemand]: 332/345 looper letters, 63 selfloop transitions, 50 changer transitions 0/115 dead transitions. [2023-08-25 22:18:04,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 115 transitions, 725 flow [2023-08-25 22:18:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 22:18:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 22:18:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1013 transitions. [2023-08-25 22:18:04,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.16312399355877616 [2023-08-25 22:18:04,867 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1013 transitions. [2023-08-25 22:18:04,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1013 transitions. [2023-08-25 22:18:04,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:18:04,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1013 transitions. [2023-08-25 22:18:04,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 56.27777777777778) internal successors, (1013), 18 states have internal predecessors, (1013), 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 22:18:04,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 345.0) internal successors, (6555), 19 states have internal predecessors, (6555), 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 22:18:04,875 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 345.0) internal successors, (6555), 19 states have internal predecessors, (6555), 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 22:18:04,875 INFO L175 Difference]: Start difference. First operand has 51 places, 51 transitions, 250 flow. Second operand 18 states and 1013 transitions. [2023-08-25 22:18:04,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 115 transitions, 725 flow [2023-08-25 22:18:04,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 115 transitions, 700 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 22:18:04,895 INFO L231 Difference]: Finished difference. Result has 75 places, 78 transitions, 564 flow [2023-08-25 22:18:04,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=564, PETRI_PLACES=75, PETRI_TRANSITIONS=78} [2023-08-25 22:18:04,897 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2023-08-25 22:18:04,897 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 78 transitions, 564 flow [2023-08-25 22:18:04,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 52.774193548387096) internal successors, (1636), 31 states have internal predecessors, (1636), 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 22:18:04,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:18:04,899 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:18:04,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 22:18:05,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 22:18:05,100 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err19ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-25 22:18:05,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:18:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash -338506173, now seen corresponding path program 2 times [2023-08-25 22:18:05,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:18:05,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176874619] [2023-08-25 22:18:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:18:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:18:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:18:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:18:05,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:18:05,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176874619] [2023-08-25 22:18:05,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176874619] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 22:18:05,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500774169] [2023-08-25 22:18:05,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 22:18:05,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 22:18:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:18:05,725 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 22:18:05,735 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 22:18:05,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 22:18:05,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 22:18:05,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-25 22:18:05,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 22:18:05,891 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-25 22:18:05,891 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-25 22:18:05,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 22:18:05,967 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2023-08-25 22:18:06,148 INFO L322 Elim1Store]: treesize reduction 70, result has 17.6 percent of original size [2023-08-25 22:18:06,148 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2023-08-25 22:18:06,214 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 22:18:06,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:18:06,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 22:18:06,340 INFO L322 Elim1Store]: treesize reduction 44, result has 53.2 percent of original size [2023-08-25 22:18:06,341 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 95 treesize of output 159 [2023-08-25 22:18:06,364 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,365 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2023-08-25 22:18:06,577 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,577 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 194 [2023-08-25 22:18:06,590 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,591 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 185 [2023-08-25 22:18:06,604 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,604 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-25 22:18:06,664 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,666 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2023-08-25 22:18:06,669 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2023-08-25 22:18:06,677 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 13 [2023-08-25 22:18:06,715 INFO L322 Elim1Store]: treesize reduction 27, result has 60.9 percent of original size [2023-08-25 22:18:06,716 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 105 treesize of output 127 [2023-08-25 22:18:06,727 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 22:18:06,728 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2023-08-25 22:18:06,778 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-08-25 22:18:06,783 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 22:18:06,983 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,SelfDestructingSolverStorable6 [2023-08-25 22:18:06,983 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-25 22:18:06,989 INFO L158 Benchmark]: Toolchain (without parser) took 133727.65ms. Allocated memory was 352.3MB in the beginning and 541.1MB in the end (delta: 188.7MB). Free memory was 305.1MB in the beginning and 232.6MB in the end (delta: 72.4MB). Peak memory consumption was 263.8MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,989 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 352.3MB. Free memory is still 330.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:18:06,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.69ms. Allocated memory is still 352.3MB. Free memory was 305.1MB in the beginning and 284.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.97ms. Allocated memory is still 352.3MB. Free memory was 284.1MB in the beginning and 280.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,990 INFO L158 Benchmark]: Boogie Preprocessor took 45.53ms. Allocated memory is still 352.3MB. Free memory was 280.9MB in the beginning and 278.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,990 INFO L158 Benchmark]: RCFGBuilder took 656.01ms. Allocated memory is still 352.3MB. Free memory was 278.8MB in the beginning and 228.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,990 INFO L158 Benchmark]: TraceAbstraction took 132585.26ms. Allocated memory was 352.3MB in the beginning and 541.1MB in the end (delta: 188.7MB). Free memory was 227.5MB in the beginning and 232.6MB in the end (delta: -5.2MB). Peak memory consumption was 186.2MB. Max. memory is 16.0GB. [2023-08-25 22:18:06,991 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 352.3MB. Free memory is still 330.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 377.69ms. Allocated memory is still 352.3MB. Free memory was 305.1MB in the beginning and 284.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.97ms. Allocated memory is still 352.3MB. Free memory was 284.1MB in the beginning and 280.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.53ms. Allocated memory is still 352.3MB. Free memory was 280.9MB in the beginning and 278.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 656.01ms. Allocated memory is still 352.3MB. Free memory was 278.8MB in the beginning and 228.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. * TraceAbstraction took 132585.26ms. Allocated memory was 352.3MB in the beginning and 541.1MB in the end (delta: 188.7MB). Free memory was 227.5MB in the beginning and 232.6MB in the end (delta: -5.2MB). Peak memory consumption was 186.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.4s, 150 PlacesBefore, 46 PlacesAfterwards, 157 TransitionsBefore, 47 TransitionsAfterwards, 3328 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 149 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 188 TotalNumberOfCompositions, 4635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3601, independent: 3306, independent conditional: 0, independent unconditional: 3306, dependent: 295, dependent conditional: 0, dependent unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1812, independent: 1755, independent conditional: 0, independent unconditional: 1755, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3601, independent: 1551, independent conditional: 0, independent unconditional: 1551, dependent: 238, dependent conditional: 0, dependent unconditional: 238, unknown: 1812, unknown conditional: 0, unknown unconditional: 1812] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-25 22:18:07,011 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...