/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/26_stack_cas_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:12:43,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:12:43,833 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 22:12:43,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:12:43,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:12:43,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:12:43,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:12:43,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:12:43,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:12:43,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:12:43,880 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:12:43,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:12:43,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:12:43,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:12:43,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:12:43,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:12:43,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:12:43,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:12:43,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:12:43,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:12:43,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:12:43,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:12:43,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:12:43,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:12:43,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:12:43,886 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:12:43,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:12:43,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:12:43,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:12:43,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:12:43,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:12:43,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:12:43,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:12:43,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:12:43,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:12:43,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:12:44,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:12:44,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:12:44,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:12:44,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:12:44,225 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:12:44,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-25 22:12:45,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:12:45,741 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:12:45,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-08-25 22:12:45,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149b29dca/8fa9322f95ed464faefdeaf93ce6a8a0/FLAG0f3dff64f [2023-08-25 22:12:45,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149b29dca/8fa9322f95ed464faefdeaf93ce6a8a0 [2023-08-25 22:12:45,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:12:45,771 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:12:45,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:12:45,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:12:45,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:12:45,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:12:45" (1/1) ... [2023-08-25 22:12:45,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156aa29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:45, skipping insertion in model container [2023-08-25 22:12:45,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:12:45" (1/1) ... [2023-08-25 22:12:45,817 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:12:46,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:12:46,173 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:12:46,202 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-25 22:12:46,209 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-25 22:12:46,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:12:46,284 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:12:46,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46 WrapperNode [2023-08-25 22:12:46,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:12:46,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:12:46,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:12:46,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:12:46,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,375 INFO L138 Inliner]: procedures = 177, calls = 48, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 323 [2023-08-25 22:12:46,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:12:46,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:12:46,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:12:46,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:12:46,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:12:46,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:12:46,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:12:46,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:12:46,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (1/1) ... [2023-08-25 22:12:46,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:12:46,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:12:46,498 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 22:12:46,517 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 22:12:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 22:12:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:12:46,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:12:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:12:46,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:12:46,537 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 22:12:46,649 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:12:46,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:12:47,100 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:12:47,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:12:47,314 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 22:12:47,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:12:47 BoogieIcfgContainer [2023-08-25 22:12:47,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:12:47,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:12:47,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:12:47,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:12:47,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:12:45" (1/3) ... [2023-08-25 22:12:47,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77aa03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:12:47, skipping insertion in model container [2023-08-25 22:12:47,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:12:46" (2/3) ... [2023-08-25 22:12:47,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77aa03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:12:47, skipping insertion in model container [2023-08-25 22:12:47,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:12:47" (3/3) ... [2023-08-25 22:12:47,324 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2023-08-25 22:12:47,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:12:47,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-08-25 22:12:47,340 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:12:47,455 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 22:12:47,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,576 INFO L124 PetriNetUnfolderBase]: 11/192 cut-off events. [2023-08-25 22:12:47,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:47,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 192 events. 11/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 246 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 158. Up to 4 conditions per place. [2023-08-25 22:12:47,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,596 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:12:47,603 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,605 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 182 transitions, 369 flow [2023-08-25 22:12:47,661 INFO L124 PetriNetUnfolderBase]: 11/192 cut-off events. [2023-08-25 22:12:47,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:47,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 192 events. 11/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 246 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 158. Up to 4 conditions per place. [2023-08-25 22:12:47,668 INFO L119 LiptonReduction]: Number of co-enabled transitions 3796 [2023-08-25 22:12:54,934 INFO L134 LiptonReduction]: Checked pairs total: 4838 [2023-08-25 22:12:54,934 INFO L136 LiptonReduction]: Total number of compositions: 206 [2023-08-25 22:12:54,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:12:54,949 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;@25d1c3a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:12:54,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-08-25 22:12:54,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:12:54,952 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-25 22:12:54,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:54,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:12:54,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 22:12:54,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err26ASSERT_VIOLATIONASSERT, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err25ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 22:12:54,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:12:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash 38527557, now seen corresponding path program 1 times [2023-08-25 22:12:54,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:12:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582459926] [2023-08-25 22:12:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:12:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:12:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:12:55,092 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 22:12:55,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:12:55,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582459926] [2023-08-25 22:12:55,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582459926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:12:55,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:12:55,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 22:12:55,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38480839] [2023-08-25 22:12:55,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:12:55,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:12:55,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:12:55,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:12:55,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:12:55,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 388 [2023-08-25 22:12:55,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 52 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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 22:12:55,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:12:55,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 388 [2023-08-25 22:12:55,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:12:55,201 INFO L124 PetriNetUnfolderBase]: 40/88 cut-off events. [2023-08-25 22:12:55,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:55,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 88 events. 40/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 192 event pairs, 28 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 168. Up to 88 conditions per place. [2023-08-25 22:12:55,203 INFO L140 encePairwiseOnDemand]: 359/388 looper letters, 21 selfloop transitions, 0 changer transitions 1/23 dead transitions. [2023-08-25 22:12:55,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 95 flow [2023-08-25 22:12:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:12:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:12:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 355 transitions. [2023-08-25 22:12:55,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574742268041237 [2023-08-25 22:12:55,223 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 355 transitions. [2023-08-25 22:12:55,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 355 transitions. [2023-08-25 22:12:55,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:12:55,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 355 transitions. [2023-08-25 22:12:55,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 177.5) internal successors, (355), 2 states have internal predecessors, (355), 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 22:12:55,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 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 22:12:55,237 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 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 22:12:55,239 INFO L175 Difference]: Start difference. First operand has 49 places, 52 transitions, 109 flow. Second operand 2 states and 355 transitions. [2023-08-25 22:12:55,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 95 flow [2023-08-25 22:12:55,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 95 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:12:55,243 INFO L231 Difference]: Finished difference. Result has 23 places, 22 transitions, 49 flow [2023-08-25 22:12:55,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=49, PETRI_PLACES=23, PETRI_TRANSITIONS=22} [2023-08-25 22:12:55,249 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -26 predicate places. [2023-08-25 22:12:55,250 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 22 transitions, 49 flow [2023-08-25 22:12:55,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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 22:12:55,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:12:55,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:12:55,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:12:55,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err26ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err26ASSERT_VIOLATIONASSERT, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err25ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 22:12:55,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:12:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1184680307, now seen corresponding path program 1 times [2023-08-25 22:12:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:12:55,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367400244] [2023-08-25 22:12:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:12:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:12:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:12:55,422 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 22:12:55,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:12:55,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367400244] [2023-08-25 22:12:55,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367400244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:12:55,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:12:55,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:12:55,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329480223] [2023-08-25 22:12:55,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:12:55,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:12:55,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:12:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:12:55,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:12:55,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 388 [2023-08-25 22:12:55,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 22 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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 22:12:55,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:12:55,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 388 [2023-08-25 22:12:55,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:12:55,513 INFO L124 PetriNetUnfolderBase]: 35/80 cut-off events. [2023-08-25 22:12:55,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:55,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 80 events. 35/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 2 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 162. Up to 70 conditions per place. [2023-08-25 22:12:55,515 INFO L140 encePairwiseOnDemand]: 385/388 looper letters, 20 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-08-25 22:12:55,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 95 flow [2023-08-25 22:12:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:12:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:12:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2023-08-25 22:12:55,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012027491408935 [2023-08-25 22:12:55,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 467 transitions. [2023-08-25 22:12:55,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 467 transitions. [2023-08-25 22:12:55,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:12:55,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 467 transitions. [2023-08-25 22:12:55,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 22:12:55,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 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 22:12:55,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 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 22:12:55,526 INFO L175 Difference]: Start difference. First operand has 23 places, 22 transitions, 49 flow. Second operand 3 states and 467 transitions. [2023-08-25 22:12:55,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 95 flow [2023-08-25 22:12:55,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 95 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:12:55,528 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 51 flow [2023-08-25 22:12:55,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-08-25 22:12:55,528 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -25 predicate places. [2023-08-25 22:12:55,529 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 51 flow [2023-08-25 22:12:55,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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 22:12:55,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:12:55,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:12:55,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:12:55,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err26ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err26ASSERT_VIOLATIONASSERT, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err25ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 22:12:55,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:12:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 980766826, now seen corresponding path program 1 times [2023-08-25 22:12:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:12:55,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459030098] [2023-08-25 22:12:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:12:55,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:12:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:12:55,802 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 22:12:55,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:12:55,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459030098] [2023-08-25 22:12:55,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459030098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:12:55,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:12:55,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 22:12:55,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374881598] [2023-08-25 22:12:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:12:55,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 22:12:55,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:12:55,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 22:12:55,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 22:12:55,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 388 [2023-08-25 22:12:55,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 22:12:55,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:12:55,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 388 [2023-08-25 22:12:55,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:12:56,019 INFO L124 PetriNetUnfolderBase]: 45/105 cut-off events. [2023-08-25 22:12:56,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:12:56,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 105 events. 45/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 180 event pairs, 12 based on Foata normal form. 3/96 useless extension candidates. Maximal degree in co-relation 216. Up to 65 conditions per place. [2023-08-25 22:12:56,021 INFO L140 encePairwiseOnDemand]: 384/388 looper letters, 24 selfloop transitions, 2 changer transitions 3/30 dead transitions. [2023-08-25 22:12:56,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 30 transitions, 127 flow [2023-08-25 22:12:56,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 22:12:56,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 22:12:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 598 transitions. [2023-08-25 22:12:56,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3853092783505155 [2023-08-25 22:12:56,023 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 598 transitions. [2023-08-25 22:12:56,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 598 transitions. [2023-08-25 22:12:56,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:12:56,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 598 transitions. [2023-08-25 22:12:56,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.5) internal successors, (598), 4 states have internal predecessors, (598), 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 22:12:56,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 388.0) internal successors, (1940), 5 states have internal predecessors, (1940), 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 22:12:56,028 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 388.0) internal successors, (1940), 5 states have internal predecessors, (1940), 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 22:12:56,028 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 51 flow. Second operand 4 states and 598 transitions. [2023-08-25 22:12:56,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 30 transitions, 127 flow [2023-08-25 22:12:56,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 30 transitions, 123 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:12:56,030 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 61 flow [2023-08-25 22:12:56,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-08-25 22:12:56,032 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -22 predicate places. [2023-08-25 22:12:56,032 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 61 flow [2023-08-25 22:12:56,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 22:12:56,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:12:56,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:12:56,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:12:56,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err26ASSERT_VIOLATIONASSERT === [thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err26ASSERT_VIOLATIONASSERT, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err25ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 22:12:56,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:12:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash -586407218, now seen corresponding path program 1 times [2023-08-25 22:12:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:12:56,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378464678] [2023-08-25 22:12:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:12:56,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:12:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:12:56,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 22:12:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:12:56,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 22:12:56,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 22:12:56,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err26ASSERT_VIOLATIONASSERT (53 of 54 remaining) [2023-08-25 22:12:56,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-08-25 22:12:56,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONASSERT (51 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-08-25 22:12:56,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-08-25 22:12:56,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-08-25 22:12:56,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-08-25 22:12:56,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-08-25 22:12:56,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-08-25 22:12:56,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-08-25 22:12:56,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-08-25 22:12:56,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-08-25 22:12:56,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-08-25 22:12:56,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-08-25 22:12:56,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-08-25 22:12:56,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-08-25 22:12:56,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-08-25 22:12:56,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-08-25 22:12:56,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2023-08-25 22:12:56,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2023-08-25 22:12:56,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2023-08-25 22:12:56,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-08-25 22:12:56,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-08-25 22:12:56,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-08-25 22:12:56,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-08-25 22:12:56,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-08-25 22:12:56,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-08-25 22:12:56,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-08-25 22:12:56,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-08-25 22:12:56,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:12:56,371 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 22:12:56,374 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-25 22:12:56,379 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 22:12:56,379 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 22:12:56,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:12:56 BasicIcfg [2023-08-25 22:12:56,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 22:12:56,455 INFO L158 Benchmark]: Toolchain (without parser) took 10683.33ms. Allocated memory was 362.8MB in the beginning and 515.9MB in the end (delta: 153.1MB). Free memory was 338.0MB in the beginning and 216.3MB in the end (delta: 121.7MB). Peak memory consumption was 275.3MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,455 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 339.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:12:56,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.97ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 316.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.12ms. Allocated memory is still 362.8MB. Free memory was 316.4MB in the beginning and 312.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,456 INFO L158 Benchmark]: Boogie Preprocessor took 79.91ms. Allocated memory is still 362.8MB. Free memory was 312.8MB in the beginning and 309.2MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,459 INFO L158 Benchmark]: RCFGBuilder took 859.20ms. Allocated memory is still 362.8MB. Free memory was 309.2MB in the beginning and 271.0MB in the end (delta: 38.2MB). Peak memory consumption was 40.4MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,461 INFO L158 Benchmark]: TraceAbstraction took 9135.76ms. Allocated memory was 362.8MB in the beginning and 515.9MB in the end (delta: 153.1MB). Free memory was 269.8MB in the beginning and 216.3MB in the end (delta: 53.5MB). Peak memory consumption was 205.5MB. Max. memory is 16.0GB. [2023-08-25 22:12:56,463 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 339.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 512.97ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 316.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 90.12ms. Allocated memory is still 362.8MB. Free memory was 316.4MB in the beginning and 312.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 79.91ms. Allocated memory is still 362.8MB. Free memory was 312.8MB in the beginning and 309.2MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 859.20ms. Allocated memory is still 362.8MB. Free memory was 309.2MB in the beginning and 271.0MB in the end (delta: 38.2MB). Peak memory consumption was 40.4MB. Max. memory is 16.0GB. * TraceAbstraction took 9135.76ms. Allocated memory was 362.8MB in the beginning and 515.9MB in the end (delta: 153.1MB). Free memory was 269.8MB in the beginning and 216.3MB in the end (delta: 53.5MB). Peak memory consumption was 205.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 175 PlacesBefore, 49 PlacesAfterwards, 182 TransitionsBefore, 52 TransitionsAfterwards, 3796 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 206 TotalNumberOfCompositions, 4838 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3416, independent: 3149, independent conditional: 0, independent unconditional: 3149, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2026, independent: 1966, independent conditional: 0, independent unconditional: 1966, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3416, independent: 1183, independent conditional: 0, independent unconditional: 1183, dependent: 207, dependent conditional: 0, dependent unconditional: 207, unknown: 2026, unknown conditional: 0, unknown unconditional: 2026] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 17]: assertion can be violated assertion can be violated We found a FailurePath: [L714] 0 int memory[(2*960+1)]; [L715] 0 int next_alloc_idx = 1; [L716] 0 int m = 0; [L717] 0 int top; [L769] 0 int m2 = 0; [L770] 0 int state = 0; [L788] 0 pthread_t t; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, t={8:0}, top={4:0}] [L789] COND TRUE 0 1 [L789] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, pthread_create(&t, 0, thr1, 0)=-2, state=0, t={8:0}, top={4:0}] [L773] CALL 1 __VERIFIER_atomic_acquire(&m2) [L691] EXPR 1 \read(*m) [L691] EXPR 1 *m==0 [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L773] RET 1 __VERIFIER_atomic_acquire(&m2) [L774-L783] 1 switch(state) { case 0: EBStack_init(); state = 1; case 1: __VERIFIER_atomic_release(&m2); push_loop(); break; } VAL [arg={0:0}, arg={0:0}, m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, top={4:0}] [L776] 1 case 0: [L777] CALL 1 EBStack_init() [L732] 1 top = 0 [L777] RET 1 EBStack_init() [L778] 1 state = 1 [L779] 1 case 1: [L780] CALL 1 __VERIFIER_atomic_release(&m2) [L696] EXPR 1 \read(*m) [L696] EXPR 1 *m==1 [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L780] RET 1 __VERIFIER_atomic_release(&m2) [L781] CALL 1 push_loop() [L762] 1 int r = -1; [L763] 1 int arg = __VERIFIER_nondet_int(); [L764] COND TRUE 1 1 [L765] CALL, EXPR 1 push(arg) [L741] 1 int oldTop = -1, newTop = -1, casret = -1; [L742] CALL, EXPR 1 index_malloc() [L719] 1 int curr_alloc_idx = -1; [L720] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] EXPR 1 *m==0 [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L720] RET 1 __VERIFIER_atomic_acquire(&m) [L721] EXPR 1 next_alloc_idx+2 VAL [curr_alloc_idx=-1, m2={5:0}, m={3:0}, next_alloc_idx=1, state=1, top={4:0}] [L721] COND FALSE 1 !(next_alloc_idx+2-1 > (2*960+1)) [L725] 1 curr_alloc_idx = next_alloc_idx [L726] 1 next_alloc_idx += 2 [L727] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] EXPR 1 *m==1 [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L727] RET 1 __VERIFIER_atomic_release(&m) [L729] 1 return curr_alloc_idx; [L742] RET, EXPR 1 index_malloc() [L742] 1 newTop = index_malloc() [L743] COND FALSE 1 !(newTop == 0) [L746] 1 memory[newTop+0] = d VAL [\old(d)=0, casret={6:0}, d=0, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L747] COND TRUE 1 1 [L748] EXPR 1 \read(top) [L748] 1 oldTop = top [L749] 1 memory[newTop+1] = oldTop VAL [\old(d)=0, casret={6:0}, d=0, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L750] CALL 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L705] EXPR 1 \read(*v) [L705] 1 *v == e [L705] COND TRUE 1 *v == e [L707] 1 *v = u [L707] 1 *r = 1 [L750] RET 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L751] EXPR 1 \read(casret) [L751] 1 casret==1 [L751] COND TRUE 1 casret==1 VAL [\old(d)=0, \read(casret)=1, casret={6:0}, d=0, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L752] 1 return 1; [L741] 1 int oldTop = -1, newTop = -1, casret = -1; [L752] 1 return 1; [L765] RET, EXPR 1 push(arg) [L765] 1 r = push(arg) VAL [arg=0, m2={5:0}, m={3:0}, next_alloc_idx=3, push(arg)=1, r=1, state=1, top={4:0}] [L766] CALL 1 __VERIFIER_atomic_assert(r) [L759] EXPR 1 !r || !isEmpty() [L759] CALL, EXPR 1 isEmpty() [L735] EXPR 1 \read(top) [L735] 1 top == 0 [L735] COND FALSE 1 !(top == 0) [L738] 1 return 0; [L759] RET, EXPR 1 isEmpty() [L759] EXPR 1 !r || !isEmpty() [L759] COND TRUE 1 !(!(!r || !isEmpty())) [L759] CALL 1 reach_error() [L17] COND FALSE 1 !(0) [L17] 1 __assert_fail ("0", "26_stack_cas_longest-1.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, top={4:0}] - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 311 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 22:12:56,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...