/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 00:18:00,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 00:18:00,225 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 [2023-08-27 00:18:00,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 00:18:00,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 00:18:00,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 00:18:00,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 00:18:00,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 00:18:00,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 00:18:00,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 00:18:00,267 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 00:18:00,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 00:18:00,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 00:18:00,269 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 00:18:00,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 00:18:00,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 00:18:00,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 00:18:00,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 00:18:00,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 00:18:00,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 00:18:00,270 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 00:18:00,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 00:18:00,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 00:18:00,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 00:18:00,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 00:18:00,272 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 00:18:00,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 00:18:00,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 00:18:00,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 00:18:00,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 00:18:00,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 00:18:00,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 00:18:00,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 00:18:00,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 00:18:00,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 00:18:00,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 00:18:00,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 00:18:00,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 00:18:00,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 00:18:00,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 00:18:00,647 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 00:18:00,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2023-08-27 00:18:01,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 00:18:02,081 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 00:18:02,081 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2023-08-27 00:18:02,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7138316/c6a1a4ec881341939b82cb1e56978c78/FLAG29cc5798c [2023-08-27 00:18:02,097 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7138316/c6a1a4ec881341939b82cb1e56978c78 [2023-08-27 00:18:02,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 00:18:02,100 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 00:18:02,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 00:18:02,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 00:18:02,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 00:18:02,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1879f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02, skipping insertion in model container [2023-08-27 00:18:02,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,124 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 00:18:02,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 00:18:02,312 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 00:18:02,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 00:18:02,355 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 00:18:02,355 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 00:18:02,362 INFO L206 MainTranslator]: Completed translation [2023-08-27 00:18:02,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02 WrapperNode [2023-08-27 00:18:02,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 00:18:02,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 00:18:02,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 00:18:02,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 00:18:02,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,405 INFO L138 Inliner]: procedures = 22, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-08-27 00:18:02,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 00:18:02,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 00:18:02,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 00:18:02,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 00:18:02,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 00:18:02,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 00:18:02,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 00:18:02,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 00:18:02,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (1/1) ... [2023-08-27 00:18:02,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 00:18:02,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:02,485 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) [2023-08-27 00:18:02,497 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 [2023-08-27 00:18:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 00:18:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 00:18:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 00:18:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 00:18:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 00:18:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 00:18:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 00:18:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 00:18:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 00:18:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 00:18:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 00:18:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 00:18:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 00:18:02,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 00:18:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 00:18:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 00:18:02,526 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 00:18:02,633 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 00:18:02,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 00:18:02,933 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 00:18:02,975 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 00:18:02,975 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-27 00:18:02,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:18:02 BoogieIcfgContainer [2023-08-27 00:18:02,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 00:18:02,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 00:18:02,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 00:18:02,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 00:18:02,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:18:02" (1/3) ... [2023-08-27 00:18:02,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fce364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:18:02, skipping insertion in model container [2023-08-27 00:18:02,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:18:02" (2/3) ... [2023-08-27 00:18:02,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fce364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:18:02, skipping insertion in model container [2023-08-27 00:18:02,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:18:02" (3/3) ... [2023-08-27 00:18:02,984 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2023-08-27 00:18:02,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 00:18:02,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-27 00:18:02,999 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 00:18:03,071 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 00:18:03,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 140 transitions, 304 flow [2023-08-27 00:18:03,185 INFO L124 PetriNetUnfolderBase]: 16/137 cut-off events. [2023-08-27 00:18:03,185 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 00:18:03,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 16/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 88. Up to 4 conditions per place. [2023-08-27 00:18:03,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 140 transitions, 304 flow [2023-08-27 00:18:03,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 126 transitions, 270 flow [2023-08-27 00:18:03,205 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 00:18:03,215 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 126 transitions, 270 flow [2023-08-27 00:18:03,217 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 126 transitions, 270 flow [2023-08-27 00:18:03,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 126 transitions, 270 flow [2023-08-27 00:18:03,265 INFO L124 PetriNetUnfolderBase]: 16/126 cut-off events. [2023-08-27 00:18:03,266 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 00:18:03,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 16/126 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 220 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 88. Up to 4 conditions per place. [2023-08-27 00:18:03,272 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-27 00:18:07,395 INFO L134 LiptonReduction]: Checked pairs total: 4979 [2023-08-27 00:18:07,395 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-08-27 00:18:07,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 00:18:07,412 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;@38ec4158, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 00:18:07,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-27 00:18:07,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 00:18:07,415 INFO L124 PetriNetUnfolderBase]: 1/3 cut-off events. [2023-08-27 00:18:07,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 00:18:07,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:07,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 00:18:07,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:07,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:07,421 INFO L85 PathProgramCache]: Analyzing trace with hash 610446, now seen corresponding path program 1 times [2023-08-27 00:18:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:07,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468239493] [2023-08-27 00:18:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:07,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468239493] [2023-08-27 00:18:07,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468239493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:18:07,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:18:07,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 00:18:07,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795816453] [2023-08-27 00:18:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:18:07,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:18:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:18:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:18:07,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 272 [2023-08-27 00:18:07,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-08-27 00:18:07,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:07,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 272 [2023-08-27 00:18:07,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:07,942 INFO L124 PetriNetUnfolderBase]: 1473/2117 cut-off events. [2023-08-27 00:18:07,943 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2023-08-27 00:18:07,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4387 conditions, 2117 events. 1473/2117 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 9514 event pairs, 693 based on Foata normal form. 1/734 useless extension candidates. Maximal degree in co-relation 4104. Up to 2039 conditions per place. [2023-08-27 00:18:07,964 INFO L140 encePairwiseOnDemand]: 255/272 looper letters, 42 selfloop transitions, 4 changer transitions 1/47 dead transitions. [2023-08-27 00:18:07,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 221 flow [2023-08-27 00:18:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:18:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:18:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2023-08-27 00:18:07,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742647058823529 [2023-08-27 00:18:07,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2023-08-27 00:18:07,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2023-08-27 00:18:07,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:07,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2023-08-27 00:18:07,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2023-08-27 00:18:07,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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) [2023-08-27 00:18:08,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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) [2023-08-27 00:18:08,001 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 80 flow. Second operand 3 states and 387 transitions. [2023-08-27 00:18:08,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 221 flow [2023-08-27 00:18:08,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 199 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 00:18:08,009 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 118 flow [2023-08-27 00:18:08,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2023-08-27 00:18:08,018 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places. [2023-08-27 00:18:08,019 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 118 flow [2023-08-27 00:18:08,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-08-27 00:18:08,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:08,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 00:18:08,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 00:18:08,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:08,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash 18925354, now seen corresponding path program 1 times [2023-08-27 00:18:08,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:08,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265494402] [2023-08-27 00:18:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:08,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265494402] [2023-08-27 00:18:08,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265494402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:18:08,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:18:08,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 00:18:08,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450357140] [2023-08-27 00:18:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:18:08,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:18:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:18:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:18:08,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 272 [2023-08-27 00:18:08,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-08-27 00:18:08,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:08,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 272 [2023-08-27 00:18:08,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:08,379 INFO L124 PetriNetUnfolderBase]: 1267/1825 cut-off events. [2023-08-27 00:18:08,380 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-08-27 00:18:08,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4910 conditions, 1825 events. 1267/1825 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 7648 event pairs, 995 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 4540. Up to 1825 conditions per place. [2023-08-27 00:18:08,391 INFO L140 encePairwiseOnDemand]: 270/272 looper letters, 32 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-08-27 00:18:08,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 180 flow [2023-08-27 00:18:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:18:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:18:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-08-27 00:18:08,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41299019607843135 [2023-08-27 00:18:08,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-08-27 00:18:08,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-08-27 00:18:08,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:08,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-08-27 00:18:08,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-08-27 00:18:08,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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) [2023-08-27 00:18:08,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 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) [2023-08-27 00:18:08,399 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 118 flow. Second operand 3 states and 337 transitions. [2023-08-27 00:18:08,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 180 flow [2023-08-27 00:18:08,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:18:08,401 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 112 flow [2023-08-27 00:18:08,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-08-27 00:18:08,402 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places. [2023-08-27 00:18:08,403 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 112 flow [2023-08-27 00:18:08,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-08-27 00:18:08,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:08,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 00:18:08,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 00:18:08,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:08,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:08,413 INFO L85 PathProgramCache]: Analyzing trace with hash 18925370, now seen corresponding path program 1 times [2023-08-27 00:18:08,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441441316] [2023-08-27 00:18:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:08,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:08,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441441316] [2023-08-27 00:18:08,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441441316] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:08,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329310661] [2023-08-27 00:18:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:08,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:08,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:08,505 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) [2023-08-27 00:18:08,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 00:18:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:08,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 00:18:08,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:08,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:08,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329310661] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:08,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:08,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2023-08-27 00:18:08,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783724542] [2023-08-27 00:18:08,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:08,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 00:18:08,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:08,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 00:18:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-08-27 00:18:08,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 272 [2023-08-27 00:18:08,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 112 flow. Second operand has 8 states, 8 states have (on average 103.5) internal successors, (828), 8 states have internal predecessors, (828), 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) [2023-08-27 00:18:08,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:08,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 272 [2023-08-27 00:18:08,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:09,835 INFO L124 PetriNetUnfolderBase]: 3509/5331 cut-off events. [2023-08-27 00:18:09,835 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2023-08-27 00:18:09,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13961 conditions, 5331 events. 3509/5331 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 31352 event pairs, 141 based on Foata normal form. 0/3089 useless extension candidates. Maximal degree in co-relation 13953. Up to 3196 conditions per place. [2023-08-27 00:18:09,867 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 151 selfloop transitions, 54 changer transitions 1/206 dead transitions. [2023-08-27 00:18:09,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 206 transitions, 1046 flow [2023-08-27 00:18:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-27 00:18:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-27 00:18:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1476 transitions. [2023-08-27 00:18:09,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4522058823529412 [2023-08-27 00:18:09,872 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1476 transitions. [2023-08-27 00:18:09,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1476 transitions. [2023-08-27 00:18:09,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:09,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1476 transitions. [2023-08-27 00:18:09,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.0) internal successors, (1476), 12 states have internal predecessors, (1476), 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) [2023-08-27 00:18:09,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 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) [2023-08-27 00:18:09,882 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 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) [2023-08-27 00:18:09,882 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 112 flow. Second operand 12 states and 1476 transitions. [2023-08-27 00:18:09,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 206 transitions, 1046 flow [2023-08-27 00:18:09,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 206 transitions, 1045 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:18:09,887 INFO L231 Difference]: Finished difference. Result has 53 places, 93 transitions, 659 flow [2023-08-27 00:18:09,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=659, PETRI_PLACES=53, PETRI_TRANSITIONS=93} [2023-08-27 00:18:09,887 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2023-08-27 00:18:09,888 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 93 transitions, 659 flow [2023-08-27 00:18:09,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 103.5) internal successors, (828), 8 states have internal predecessors, (828), 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) [2023-08-27 00:18:09,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:09,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 00:18:09,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-27 00:18:10,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:10,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:10,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 18925353, now seen corresponding path program 1 times [2023-08-27 00:18:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888208895] [2023-08-27 00:18:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:10,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888208895] [2023-08-27 00:18:10,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888208895] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:10,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855945909] [2023-08-27 00:18:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:10,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:10,177 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) [2023-08-27 00:18:10,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 00:18:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:10,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 00:18:10,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:10,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855945909] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:10,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:10,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2023-08-27 00:18:10,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099420427] [2023-08-27 00:18:10,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:10,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 00:18:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:10,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 00:18:10,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-08-27 00:18:10,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 272 [2023-08-27 00:18:10,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 93 transitions, 659 flow. Second operand has 8 states, 8 states have (on average 103.5) internal successors, (828), 8 states have internal predecessors, (828), 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) [2023-08-27 00:18:10,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:10,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 272 [2023-08-27 00:18:10,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:11,476 INFO L124 PetriNetUnfolderBase]: 4826/7368 cut-off events. [2023-08-27 00:18:11,476 INFO L125 PetriNetUnfolderBase]: For 19679/19679 co-relation queries the response was YES. [2023-08-27 00:18:11,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30862 conditions, 7368 events. 4826/7368 cut-off events. For 19679/19679 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 45138 event pairs, 129 based on Foata normal form. 762/7510 useless extension candidates. Maximal degree in co-relation 30845. Up to 4320 conditions per place. [2023-08-27 00:18:11,544 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 136 selfloop transitions, 68 changer transitions 1/205 dead transitions. [2023-08-27 00:18:11,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 205 transitions, 1726 flow [2023-08-27 00:18:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 00:18:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 00:18:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 962 transitions. [2023-08-27 00:18:11,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4420955882352941 [2023-08-27 00:18:11,547 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 962 transitions. [2023-08-27 00:18:11,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 962 transitions. [2023-08-27 00:18:11,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:11,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 962 transitions. [2023-08-27 00:18:11,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 120.25) internal successors, (962), 8 states have internal predecessors, (962), 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) [2023-08-27 00:18:11,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 272.0) internal successors, (2448), 9 states have internal predecessors, (2448), 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) [2023-08-27 00:18:11,554 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 272.0) internal successors, (2448), 9 states have internal predecessors, (2448), 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) [2023-08-27 00:18:11,554 INFO L175 Difference]: Start difference. First operand has 53 places, 93 transitions, 659 flow. Second operand 8 states and 962 transitions. [2023-08-27 00:18:11,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 205 transitions, 1726 flow [2023-08-27 00:18:11,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 205 transitions, 1669 flow, removed 26 selfloop flow, removed 3 redundant places. [2023-08-27 00:18:11,732 INFO L231 Difference]: Finished difference. Result has 61 places, 130 transitions, 1378 flow [2023-08-27 00:18:11,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1378, PETRI_PLACES=61, PETRI_TRANSITIONS=130} [2023-08-27 00:18:11,733 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2023-08-27 00:18:11,733 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 130 transitions, 1378 flow [2023-08-27 00:18:11,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 103.5) internal successors, (828), 8 states have internal predecessors, (828), 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) [2023-08-27 00:18:11,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:11,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:18:11,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-27 00:18:11,939 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,SelfDestructingSolverStorable3 [2023-08-27 00:18:11,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:11,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1144052638, now seen corresponding path program 1 times [2023-08-27 00:18:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838117648] [2023-08-27 00:18:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:12,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:12,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838117648] [2023-08-27 00:18:12,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838117648] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:12,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358776816] [2023-08-27 00:18:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:12,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:12,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:12,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:18:12,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 00:18:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:12,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 00:18:12,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:12,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 00:18:12,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358776816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:18:12,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 00:18:12,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-27 00:18:12,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824064965] [2023-08-27 00:18:12,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:18:12,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 00:18:12,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:12,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 00:18:12,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-27 00:18:12,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 272 [2023-08-27 00:18:12,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 130 transitions, 1378 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 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) [2023-08-27 00:18:12,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:12,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 272 [2023-08-27 00:18:12,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:12,792 INFO L124 PetriNetUnfolderBase]: 2527/3853 cut-off events. [2023-08-27 00:18:12,793 INFO L125 PetriNetUnfolderBase]: For 34355/34355 co-relation queries the response was YES. [2023-08-27 00:18:12,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17089 conditions, 3853 events. 2527/3853 cut-off events. For 34355/34355 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 20494 event pairs, 673 based on Foata normal form. 1506/5359 useless extension candidates. Maximal degree in co-relation 17068. Up to 2476 conditions per place. [2023-08-27 00:18:12,822 INFO L140 encePairwiseOnDemand]: 261/272 looper letters, 110 selfloop transitions, 36 changer transitions 0/146 dead transitions. [2023-08-27 00:18:12,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 146 transitions, 1713 flow [2023-08-27 00:18:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 00:18:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 00:18:12,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2023-08-27 00:18:12,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42830882352941174 [2023-08-27 00:18:12,825 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 466 transitions. [2023-08-27 00:18:12,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 466 transitions. [2023-08-27 00:18:12,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:12,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 466 transitions. [2023-08-27 00:18:12,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2023-08-27 00:18:12,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 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) [2023-08-27 00:18:12,828 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 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) [2023-08-27 00:18:12,828 INFO L175 Difference]: Start difference. First operand has 61 places, 130 transitions, 1378 flow. Second operand 4 states and 466 transitions. [2023-08-27 00:18:12,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 146 transitions, 1713 flow [2023-08-27 00:18:12,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 146 transitions, 1532 flow, removed 88 selfloop flow, removed 3 redundant places. [2023-08-27 00:18:12,911 INFO L231 Difference]: Finished difference. Result has 57 places, 119 transitions, 1278 flow [2023-08-27 00:18:12,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1278, PETRI_PLACES=57, PETRI_TRANSITIONS=119} [2023-08-27 00:18:12,913 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2023-08-27 00:18:12,914 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 119 transitions, 1278 flow [2023-08-27 00:18:12,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 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) [2023-08-27 00:18:12,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:12,914 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-27 00:18:12,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-27 00:18:13,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:13,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:13,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1105895016, now seen corresponding path program 1 times [2023-08-27 00:18:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413721621] [2023-08-27 00:18:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:13,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:13,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413721621] [2023-08-27 00:18:13,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413721621] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:13,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876407912] [2023-08-27 00:18:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:13,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:13,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:18:13,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 00:18:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:13,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-27 00:18:13,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:13,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876407912] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:13,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2023-08-27 00:18:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571844799] [2023-08-27 00:18:13,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:13,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-27 00:18:13,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-27 00:18:13,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2023-08-27 00:18:13,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 272 [2023-08-27 00:18:13,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 119 transitions, 1278 flow. Second operand has 14 states, 14 states have (on average 86.71428571428571) internal successors, (1214), 14 states have internal predecessors, (1214), 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) [2023-08-27 00:18:13,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:13,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 272 [2023-08-27 00:18:13,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:15,673 INFO L124 PetriNetUnfolderBase]: 5966/8857 cut-off events. [2023-08-27 00:18:15,673 INFO L125 PetriNetUnfolderBase]: For 39005/39005 co-relation queries the response was YES. [2023-08-27 00:18:15,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39515 conditions, 8857 events. 5966/8857 cut-off events. For 39005/39005 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 51233 event pairs, 231 based on Foata normal form. 374/9231 useless extension candidates. Maximal degree in co-relation 39493. Up to 4028 conditions per place. [2023-08-27 00:18:15,756 INFO L140 encePairwiseOnDemand]: 259/272 looper letters, 236 selfloop transitions, 230 changer transitions 0/466 dead transitions. [2023-08-27 00:18:15,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 466 transitions, 4877 flow [2023-08-27 00:18:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-27 00:18:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-27 00:18:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1722 transitions. [2023-08-27 00:18:15,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37240484429065746 [2023-08-27 00:18:15,762 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1722 transitions. [2023-08-27 00:18:15,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1722 transitions. [2023-08-27 00:18:15,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:15,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1722 transitions. [2023-08-27 00:18:15,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 101.29411764705883) internal successors, (1722), 17 states have internal predecessors, (1722), 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) [2023-08-27 00:18:15,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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) [2023-08-27 00:18:15,774 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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) [2023-08-27 00:18:15,774 INFO L175 Difference]: Start difference. First operand has 57 places, 119 transitions, 1278 flow. Second operand 17 states and 1722 transitions. [2023-08-27 00:18:15,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 466 transitions, 4877 flow [2023-08-27 00:18:15,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 466 transitions, 4856 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-08-27 00:18:15,937 INFO L231 Difference]: Finished difference. Result has 86 places, 293 transitions, 4318 flow [2023-08-27 00:18:15,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1275, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4318, PETRI_PLACES=86, PETRI_TRANSITIONS=293} [2023-08-27 00:18:15,940 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 48 predicate places. [2023-08-27 00:18:15,940 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 293 transitions, 4318 flow [2023-08-27 00:18:15,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 86.71428571428571) internal successors, (1214), 14 states have internal predecessors, (1214), 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) [2023-08-27 00:18:15,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:15,942 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-27 00:18:15,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 00:18:16,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:16,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:16,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1105895039, now seen corresponding path program 1 times [2023-08-27 00:18:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:16,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89924316] [2023-08-27 00:18:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89924316] [2023-08-27 00:18:16,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89924316] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020823476] [2023-08-27 00:18:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:16,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:16,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:16,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:18:16,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 00:18:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:16,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-27 00:18:16,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:16,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:16,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020823476] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:16,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:16,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2023-08-27 00:18:16,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171701246] [2023-08-27 00:18:16,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:16,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-27 00:18:16,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:16,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-27 00:18:16,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-08-27 00:18:16,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 272 [2023-08-27 00:18:16,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 293 transitions, 4318 flow. Second operand has 14 states, 14 states have (on average 91.71428571428571) internal successors, (1284), 14 states have internal predecessors, (1284), 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) [2023-08-27 00:18:16,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:16,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 272 [2023-08-27 00:18:16,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:19,616 INFO L124 PetriNetUnfolderBase]: 9557/14134 cut-off events. [2023-08-27 00:18:19,616 INFO L125 PetriNetUnfolderBase]: For 144928/144928 co-relation queries the response was YES. [2023-08-27 00:18:19,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84381 conditions, 14134 events. 9557/14134 cut-off events. For 144928/144928 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 86543 event pairs, 783 based on Foata normal form. 768/14902 useless extension candidates. Maximal degree in co-relation 84344. Up to 6553 conditions per place. [2023-08-27 00:18:19,830 INFO L140 encePairwiseOnDemand]: 261/272 looper letters, 340 selfloop transitions, 403 changer transitions 0/743 dead transitions. [2023-08-27 00:18:19,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 743 transitions, 11175 flow [2023-08-27 00:18:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-27 00:18:19,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-27 00:18:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1779 transitions. [2023-08-27 00:18:19,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3847318339100346 [2023-08-27 00:18:19,839 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1779 transitions. [2023-08-27 00:18:19,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1779 transitions. [2023-08-27 00:18:19,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:19,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1779 transitions. [2023-08-27 00:18:19,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 104.6470588235294) internal successors, (1779), 17 states have internal predecessors, (1779), 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) [2023-08-27 00:18:19,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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) [2023-08-27 00:18:19,850 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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) [2023-08-27 00:18:19,850 INFO L175 Difference]: Start difference. First operand has 86 places, 293 transitions, 4318 flow. Second operand 17 states and 1779 transitions. [2023-08-27 00:18:19,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 743 transitions, 11175 flow [2023-08-27 00:18:20,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 743 transitions, 10205 flow, removed 477 selfloop flow, removed 4 redundant places. [2023-08-27 00:18:20,831 INFO L231 Difference]: Finished difference. Result has 111 places, 558 transitions, 9600 flow [2023-08-27 00:18:20,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=3547, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9600, PETRI_PLACES=111, PETRI_TRANSITIONS=558} [2023-08-27 00:18:20,832 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 73 predicate places. [2023-08-27 00:18:20,832 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 558 transitions, 9600 flow [2023-08-27 00:18:20,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 91.71428571428571) internal successors, (1284), 14 states have internal predecessors, (1284), 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) [2023-08-27 00:18:20,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:20,833 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-27 00:18:20,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-27 00:18:21,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:21,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:21,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1105865253, now seen corresponding path program 2 times [2023-08-27 00:18:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628913008] [2023-08-27 00:18:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:21,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:21,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628913008] [2023-08-27 00:18:21,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628913008] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:21,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599894957] [2023-08-27 00:18:21,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 00:18:21,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:21,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:21,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:18:21,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 00:18:21,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 00:18:21,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 00:18:21,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-27 00:18:21,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:21,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:21,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599894957] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:21,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2023-08-27 00:18:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535222779] [2023-08-27 00:18:21,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:21,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-27 00:18:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-27 00:18:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-08-27 00:18:21,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 272 [2023-08-27 00:18:21,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 558 transitions, 9600 flow. Second operand has 14 states, 14 states have (on average 86.71428571428571) internal successors, (1214), 14 states have internal predecessors, (1214), 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) [2023-08-27 00:18:21,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:21,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 272 [2023-08-27 00:18:21,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:26,794 INFO L124 PetriNetUnfolderBase]: 17229/25232 cut-off events. [2023-08-27 00:18:26,795 INFO L125 PetriNetUnfolderBase]: For 401060/401060 co-relation queries the response was YES. [2023-08-27 00:18:26,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177397 conditions, 25232 events. 17229/25232 cut-off events. For 401060/401060 co-relation queries the response was YES. Maximal size of possible extension queue 1282. Compared 164510 event pairs, 867 based on Foata normal form. 804/26036 useless extension candidates. Maximal degree in co-relation 177348. Up to 7861 conditions per place. [2023-08-27 00:18:27,115 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 509 selfloop transitions, 1207 changer transitions 0/1716 dead transitions. [2023-08-27 00:18:27,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 1716 transitions, 31143 flow [2023-08-27 00:18:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-27 00:18:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-27 00:18:27,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2409 transitions. [2023-08-27 00:18:27,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36902573529411764 [2023-08-27 00:18:27,122 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2409 transitions. [2023-08-27 00:18:27,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2409 transitions. [2023-08-27 00:18:27,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:27,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2409 transitions. [2023-08-27 00:18:27,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 100.375) internal successors, (2409), 24 states have internal predecessors, (2409), 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) [2023-08-27 00:18:27,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 272.0) internal successors, (6800), 25 states have internal predecessors, (6800), 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) [2023-08-27 00:18:27,139 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 272.0) internal successors, (6800), 25 states have internal predecessors, (6800), 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) [2023-08-27 00:18:27,139 INFO L175 Difference]: Start difference. First operand has 111 places, 558 transitions, 9600 flow. Second operand 24 states and 2409 transitions. [2023-08-27 00:18:27,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 1716 transitions, 31143 flow [2023-08-27 00:18:32,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 1716 transitions, 29210 flow, removed 949 selfloop flow, removed 6 redundant places. [2023-08-27 00:18:32,123 INFO L231 Difference]: Finished difference. Result has 146 places, 1467 transitions, 29094 flow [2023-08-27 00:18:32,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=8816, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=29094, PETRI_PLACES=146, PETRI_TRANSITIONS=1467} [2023-08-27 00:18:32,124 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 108 predicate places. [2023-08-27 00:18:32,125 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 1467 transitions, 29094 flow [2023-08-27 00:18:32,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 86.71428571428571) internal successors, (1214), 14 states have internal predecessors, (1214), 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) [2023-08-27 00:18:32,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:18:32,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:18:32,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-27 00:18:32,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:32,331 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:18:32,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:18:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash -97515435, now seen corresponding path program 1 times [2023-08-27 00:18:32,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:18:32,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277953223] [2023-08-27 00:18:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:32,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:18:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:18:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277953223] [2023-08-27 00:18:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277953223] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:18:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042548742] [2023-08-27 00:18:32,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:18:32,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:18:32,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:18:32,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:18:32,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 00:18:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:18:32,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-27 00:18:32,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:18:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:32,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:18:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:18:32,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042548742] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:18:32,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:18:32,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2023-08-27 00:18:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389977926] [2023-08-27 00:18:32,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:18:32,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-27 00:18:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:18:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-27 00:18:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-08-27 00:18:32,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 272 [2023-08-27 00:18:32,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 1467 transitions, 29094 flow. Second operand has 11 states, 11 states have (on average 92.45454545454545) internal successors, (1017), 11 states have internal predecessors, (1017), 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) [2023-08-27 00:18:32,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:18:32,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 272 [2023-08-27 00:18:32,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:18:44,209 INFO L124 PetriNetUnfolderBase]: 26946/39421 cut-off events. [2023-08-27 00:18:44,209 INFO L125 PetriNetUnfolderBase]: For 896642/896642 co-relation queries the response was YES. [2023-08-27 00:18:44,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324505 conditions, 39421 events. 26946/39421 cut-off events. For 896642/896642 co-relation queries the response was YES. Maximal size of possible extension queue 2099. Compared 272387 event pairs, 1635 based on Foata normal form. 1050/40471 useless extension candidates. Maximal degree in co-relation 324440. Up to 11466 conditions per place. [2023-08-27 00:18:44,742 INFO L140 encePairwiseOnDemand]: 261/272 looper letters, 1300 selfloop transitions, 1786 changer transitions 0/3086 dead transitions. [2023-08-27 00:18:44,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 3086 transitions, 64846 flow [2023-08-27 00:18:44,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-27 00:18:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-27 00:18:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1886 transitions. [2023-08-27 00:18:44,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3852124183006536 [2023-08-27 00:18:44,747 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1886 transitions. [2023-08-27 00:18:44,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1886 transitions. [2023-08-27 00:18:44,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:18:44,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1886 transitions. [2023-08-27 00:18:44,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 104.77777777777777) internal successors, (1886), 18 states have internal predecessors, (1886), 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) [2023-08-27 00:18:44,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 272.0) internal successors, (5168), 19 states have internal predecessors, (5168), 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) [2023-08-27 00:18:44,759 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 272.0) internal successors, (5168), 19 states have internal predecessors, (5168), 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) [2023-08-27 00:18:44,759 INFO L175 Difference]: Start difference. First operand has 146 places, 1467 transitions, 29094 flow. Second operand 18 states and 1886 transitions. [2023-08-27 00:18:44,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 3086 transitions, 64846 flow [2023-08-27 00:19:05,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 3086 transitions, 61428 flow, removed 1707 selfloop flow, removed 1 redundant places. [2023-08-27 00:19:05,777 INFO L231 Difference]: Finished difference. Result has 177 places, 2715 transitions, 58832 flow [2023-08-27 00:19:05,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=27420, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=58832, PETRI_PLACES=177, PETRI_TRANSITIONS=2715} [2023-08-27 00:19:05,779 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 139 predicate places. [2023-08-27 00:19:05,779 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 2715 transitions, 58832 flow [2023-08-27 00:19:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 92.45454545454545) internal successors, (1017), 11 states have internal predecessors, (1017), 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) [2023-08-27 00:19:05,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:19:05,779 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-27 00:19:05,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-27 00:19:05,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:19:05,981 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:19:05,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:19:05,982 INFO L85 PathProgramCache]: Analyzing trace with hash -77884145, now seen corresponding path program 1 times [2023-08-27 00:19:05,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:19:05,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984558363] [2023-08-27 00:19:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:19:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:19:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:19:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:19:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:19:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984558363] [2023-08-27 00:19:06,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984558363] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:19:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932568767] [2023-08-27 00:19:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:19:06,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:19:06,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:19:06,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:19:06,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 00:19:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:19:06,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-27 00:19:06,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:19:06,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:19:06,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:19:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:19:06,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932568767] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:19:06,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:19:06,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 11 [2023-08-27 00:19:06,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260104446] [2023-08-27 00:19:06,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:19:06,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-27 00:19:06,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:19:06,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-27 00:19:06,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-08-27 00:19:06,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 272 [2023-08-27 00:19:06,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 2715 transitions, 58832 flow. Second operand has 13 states, 13 states have (on average 92.07692307692308) internal successors, (1197), 13 states have internal predecessors, (1197), 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) [2023-08-27 00:19:06,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:19:06,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 272 [2023-08-27 00:19:06,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:19:39,024 INFO L124 PetriNetUnfolderBase]: 45099/67134 cut-off events. [2023-08-27 00:19:39,024 INFO L125 PetriNetUnfolderBase]: For 1653426/1653426 co-relation queries the response was YES. [2023-08-27 00:19:40,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583742 conditions, 67134 events. 45099/67134 cut-off events. For 1653426/1653426 co-relation queries the response was YES. Maximal size of possible extension queue 3807. Compared 514914 event pairs, 1617 based on Foata normal form. 3568/70702 useless extension candidates. Maximal degree in co-relation 583661. Up to 13734 conditions per place. [2023-08-27 00:19:40,487 INFO L140 encePairwiseOnDemand]: 261/272 looper letters, 2980 selfloop transitions, 3366 changer transitions 0/6346 dead transitions. [2023-08-27 00:19:40,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 6346 transitions, 145817 flow [2023-08-27 00:19:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-27 00:19:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-27 00:19:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3320 transitions. [2023-08-27 00:19:40,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38143382352941174 [2023-08-27 00:19:40,495 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3320 transitions. [2023-08-27 00:19:40,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3320 transitions. [2023-08-27 00:19:40,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:19:40,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3320 transitions. [2023-08-27 00:19:40,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 103.75) internal successors, (3320), 32 states have internal predecessors, (3320), 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) [2023-08-27 00:19:40,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 272.0) internal successors, (8976), 33 states have internal predecessors, (8976), 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) [2023-08-27 00:19:40,515 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 272.0) internal successors, (8976), 33 states have internal predecessors, (8976), 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) [2023-08-27 00:19:40,515 INFO L175 Difference]: Start difference. First operand has 177 places, 2715 transitions, 58832 flow. Second operand 32 states and 3320 transitions. [2023-08-27 00:19:40,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 6346 transitions, 145817 flow [2023-08-27 00:21:13,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 6346 transitions, 143565 flow, removed 1122 selfloop flow, removed 2 redundant places. [2023-08-27 00:21:13,960 INFO L231 Difference]: Finished difference. Result has 225 places, 4784 transitions, 116787 flow [2023-08-27 00:21:13,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=54725, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=900, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=116787, PETRI_PLACES=225, PETRI_TRANSITIONS=4784} [2023-08-27 00:21:13,963 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2023-08-27 00:21:13,963 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 4784 transitions, 116787 flow [2023-08-27 00:21:13,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 92.07692307692308) internal successors, (1197), 13 states have internal predecessors, (1197), 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) [2023-08-27 00:21:13,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:21:13,964 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-27 00:21:13,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-27 00:21:14,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-27 00:21:14,169 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:21:14,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:21:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1909161145, now seen corresponding path program 2 times [2023-08-27 00:21:14,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:21:14,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794677808] [2023-08-27 00:21:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:21:14,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:21:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:21:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:21:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:21:14,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794677808] [2023-08-27 00:21:14,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794677808] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:21:14,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371912666] [2023-08-27 00:21:14,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 00:21:14,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:21:14,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:21:14,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:21:14,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-27 00:21:14,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 00:21:14,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 00:21:14,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-27 00:21:14,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:21:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:21:14,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 00:21:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 00:21:14,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371912666] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 00:21:14,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 00:21:14,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 16 [2023-08-27 00:21:14,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330576840] [2023-08-27 00:21:14,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 00:21:14,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-27 00:21:14,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:21:14,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-27 00:21:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2023-08-27 00:21:14,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 272 [2023-08-27 00:21:14,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 4784 transitions, 116787 flow. Second operand has 17 states, 17 states have (on average 86.70588235294117) internal successors, (1474), 17 states have internal predecessors, (1474), 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) [2023-08-27 00:21:14,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:21:14,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 272 [2023-08-27 00:21:14,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:23:07,051 INFO L124 PetriNetUnfolderBase]: 84298/124715 cut-off events. [2023-08-27 00:23:07,051 INFO L125 PetriNetUnfolderBase]: For 3493098/3493098 co-relation queries the response was YES. [2023-08-27 00:23:09,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180274 conditions, 124715 events. 84298/124715 cut-off events. For 3493098/3493098 co-relation queries the response was YES. Maximal size of possible extension queue 6616. Compared 1014242 event pairs, 2649 based on Foata normal form. 8116/132831 useless extension candidates. Maximal degree in co-relation 1180174. Up to 23957 conditions per place. [2023-08-27 00:23:10,408 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 3429 selfloop transitions, 7778 changer transitions 0/11207 dead transitions. [2023-08-27 00:23:10,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 11207 transitions, 290454 flow [2023-08-27 00:23:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-08-27 00:23:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-08-27 00:23:10,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3993 transitions. [2023-08-27 00:23:10,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36700367647058824 [2023-08-27 00:23:10,414 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3993 transitions. [2023-08-27 00:23:10,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3993 transitions. [2023-08-27 00:23:10,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:23:10,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3993 transitions. [2023-08-27 00:23:10,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 99.825) internal successors, (3993), 40 states have internal predecessors, (3993), 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) [2023-08-27 00:23:10,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 272.0) internal successors, (11152), 41 states have internal predecessors, (11152), 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) [2023-08-27 00:23:10,431 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 272.0) internal successors, (11152), 41 states have internal predecessors, (11152), 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) [2023-08-27 00:23:10,431 INFO L175 Difference]: Start difference. First operand has 225 places, 4784 transitions, 116787 flow. Second operand 40 states and 3993 transitions. [2023-08-27 00:23:10,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 11207 transitions, 290454 flow [2023-08-27 00:30:35,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 11207 transitions, 283627 flow, removed 2789 selfloop flow, removed 11 redundant places. [2023-08-27 00:30:35,657 INFO L231 Difference]: Finished difference. Result has 284 places, 9693 transitions, 269511 flow [2023-08-27 00:30:35,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=105032, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=774, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=269511, PETRI_PLACES=284, PETRI_TRANSITIONS=9693} [2023-08-27 00:30:35,662 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 246 predicate places. [2023-08-27 00:30:35,662 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 9693 transitions, 269511 flow [2023-08-27 00:30:35,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 86.70588235294117) internal successors, (1474), 17 states have internal predecessors, (1474), 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) [2023-08-27 00:30:35,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:30:35,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:30:35,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-27 00:30:35,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:30:35,868 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 00:30:35,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:30:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -97516365, now seen corresponding path program 2 times [2023-08-27 00:30:35,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:30:35,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153558256] [2023-08-27 00:30:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:30:35,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:30:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:30:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:30:36,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:30:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153558256] [2023-08-27 00:30:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153558256] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 00:30:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288258249] [2023-08-27 00:30:36,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 00:30:36,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 00:30:36,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:30:36,015 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 00:30:36,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-27 00:30:36,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 00:30:36,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 00:30:36,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 00:30:36,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 00:30:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:30:36,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 00:30:36,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288258249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:30:36,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 00:30:36,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-27 00:30:36,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474450119] [2023-08-27 00:30:36,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:30:36,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 00:30:36,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:30:36,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 00:30:36,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-27 00:30:36,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 272 [2023-08-27 00:30:36,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 9693 transitions, 269511 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-08-27 00:30:36,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:30:36,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 272 [2023-08-27 00:30:36,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-27 00:32:01,928 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 00:32:01,928 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 00:32:02,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-08-27 00:32:02,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-27 00:32:03,007 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-08-27 00:32:03,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 00:32:03,008 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-27 00:32:03,009 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-08-27 00:32:03,009 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-08-27 00:32:03,009 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-08-27 00:32:03,009 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-08-27 00:32:03,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (14 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-08-27 00:32:03,011 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-08-27 00:32:03,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-08-27 00:32:03,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-08-27 00:32:03,012 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-08-27 00:32:03,012 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-08-27 00:32:03,016 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 00:32:03,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 00:32:03,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:32:03 BasicIcfg [2023-08-27 00:32:03,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 00:32:03,019 INFO L158 Benchmark]: Toolchain (without parser) took 840918.58ms. Allocated memory was 360.7MB in the beginning and 10.2GB in the end (delta: 9.8GB). Free memory was 336.6MB in the beginning and 8.8GB in the end (delta: -8.5GB). Peak memory consumption was 9.8GB. Max. memory is 16.0GB. [2023-08-27 00:32:03,019 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 360.7MB. Free memory was 338.9MB in the beginning and 338.8MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 00:32:03,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.97ms. Allocated memory is still 360.7MB. Free memory was 336.6MB in the beginning and 325.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 00:32:03,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.00ms. Allocated memory is still 360.7MB. Free memory was 325.2MB in the beginning and 323.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 00:32:03,020 INFO L158 Benchmark]: Boogie Preprocessor took 32.01ms. Allocated memory is still 360.7MB. Free memory was 323.8MB in the beginning and 322.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 00:32:03,020 INFO L158 Benchmark]: RCFGBuilder took 537.38ms. Allocated memory is still 360.7MB. Free memory was 322.4MB in the beginning and 302.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 00:32:03,020 INFO L158 Benchmark]: TraceAbstraction took 840039.58ms. Allocated memory was 360.7MB in the beginning and 10.2GB in the end (delta: 9.8GB). Free memory was 301.4MB in the beginning and 8.8GB in the end (delta: -8.5GB). Peak memory consumption was 9.7GB. Max. memory is 16.0GB. [2023-08-27 00:32:03,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 360.7MB. Free memory was 338.9MB in the beginning and 338.8MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 260.97ms. Allocated memory is still 360.7MB. Free memory was 336.6MB in the beginning and 325.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.00ms. Allocated memory is still 360.7MB. Free memory was 325.2MB in the beginning and 323.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 32.01ms. Allocated memory is still 360.7MB. Free memory was 323.8MB in the beginning and 322.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 537.38ms. Allocated memory is still 360.7MB. Free memory was 322.4MB in the beginning and 302.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 840039.58ms. Allocated memory was 360.7MB in the beginning and 10.2GB in the end (delta: 9.8GB). Free memory was 301.4MB in the beginning and 8.8GB in the end (delta: -8.5GB). Peak memory consumption was 9.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 120 PlacesBefore, 38 PlacesAfterwards, 126 TransitionsBefore, 31 TransitionsAfterwards, 4488 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 10 ConcurrentYvCompositions, 13 ChoiceCompositions, 132 TotalNumberOfCompositions, 4979 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4650, independent: 4639, independent conditional: 0, independent unconditional: 4639, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2270, independent: 2262, independent conditional: 0, independent unconditional: 2262, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4650, independent: 2377, independent conditional: 0, independent unconditional: 2377, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 2270, unknown conditional: 0, unknown unconditional: 2270] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 182 locations, 28 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: 839.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 827.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3211 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3211 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 876 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4246 IncrementalHoareTripleChecker+Invalid, 5122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 876 mSolverCounterUnsat, 0 mSDtfsCounter, 4246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1535 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=269511occurred in iteration=11, InterpolantAutomatonStates: 178, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 2303 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1034 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 30 InterpolantComputations, 4 PerfectInterpolantSequences, 10/68 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown