/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 -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.3-dev-ac9dbd0-m
[2023-08-24 04:13:25,806 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-08-24 04:13:25,868 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
[2023-08-24 04:13:25,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-08-24 04:13:25,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-08-24 04:13:25,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-24 04:13:25,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-24 04:13:25,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-24 04:13:25,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-24 04:13:25,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-08-24 04:13:25,898 INFO L153 SettingsManager]: * Use SBE=true
[2023-08-24 04:13:25,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-24 04:13:25,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-08-24 04:13:25,899 INFO L153 SettingsManager]: * sizeof long=4
[2023-08-24 04:13:25,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-08-24 04:13:25,899 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-08-24 04:13:25,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-08-24 04:13:25,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-08-24 04:13:25,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-24 04:13:25,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-08-24 04:13:25,900 INFO L153 SettingsManager]: * sizeof long double=12
[2023-08-24 04:13:25,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-08-24 04:13:25,901 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-08-24 04:13:25,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-24 04:13:25,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-08-24 04:13:25,902 INFO L153 SettingsManager]: * To the following directory=./dump/
[2023-08-24 04:13:25,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-08-24 04:13:25,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-24 04:13:25,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-24 04:13:25,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-08-24 04:13:25,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-08-24 04:13:25,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-08-24 04:13:25,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-24 04:13:25,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-24 04:13:25,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-24 04:13:25,904 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-08-24 04:13:26,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-24 04:13:26,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-24 04:13:26,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-24 04:13:26,165 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-08-24 04:13:26,166 INFO L274 PluginConnector]: CDTParser initialized
[2023-08-24 04:13:26,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i
[2023-08-24 04:13:27,036 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-08-24 04:13:27,233 INFO L384 CDTParser]: Found 1 translation units.
[2023-08-24 04:13:27,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i
[2023-08-24 04:13:27,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20bd78bce/4d5f9407795641d298ae7e59747c3216/FLAGc00ca98e5
[2023-08-24 04:13:27,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20bd78bce/4d5f9407795641d298ae7e59747c3216
[2023-08-24 04:13:27,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-24 04:13:27,255 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-08-24 04:13:27,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-24 04:13:27,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-24 04:13:27,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-24 04:13:27,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7669b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27, skipping insertion in model container
[2023-08-24 04:13:27,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,290 INFO L176 MainTranslator]: Built tables and reachable declarations
[2023-08-24 04:13:27,569 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i[39758,39771]
[2023-08-24 04:13:27,570 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-24 04:13:27,587 INFO L201 MainTranslator]: Completed pre-run
[2023-08-24 04:13:27,603 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [218]
[2023-08-24 04:13:27,604 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [219]
[2023-08-24 04:13:27,612 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730]
[2023-08-24 04:13:27,615 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [871]
[2023-08-24 04:13:27,619 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i[39758,39771]
[2023-08-24 04:13:27,619 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-24 04:13:27,664 INFO L206 MainTranslator]: Completed translation
[2023-08-24 04:13:27,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27 WrapperNode
[2023-08-24 04:13:27,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-24 04:13:27,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-24 04:13:27,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-24 04:13:27,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-24 04:13:27,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,715 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81
[2023-08-24 04:13:27,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-24 04:13:27,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-24 04:13:27,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-24 04:13:27,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-08-24 04:13:27,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-24 04:13:27,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-24 04:13:27,755 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-08-24 04:13:27,755 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-08-24 04:13:27,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (1/1) ...
[2023-08-24 04:13:27,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-24 04:13:27,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:27,777 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)
[2023-08-24 04:13:27,795 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
[2023-08-24 04:13:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-08-24 04:13:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-08-24 04:13:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-08-24 04:13:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-24 04:13:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-24 04:13:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-24 04:13:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-24 04:13:27,810 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-24 04:13:27,933 INFO L236 CfgBuilder]: Building ICFG
[2023-08-24 04:13:27,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-24 04:13:28,149 INFO L277 CfgBuilder]: Performing block encoding
[2023-08-24 04:13:28,170 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-24 04:13:28,170 INFO L302 CfgBuilder]: Removed 4 assume(true) statements.
[2023-08-24 04:13:28,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:13:28 BoogieIcfgContainer
[2023-08-24 04:13:28,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-24 04:13:28,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-24 04:13:28,173 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-08-24 04:13:28,179 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-08-24 04:13:28,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 04:13:27" (1/3) ...
[2023-08-24 04:13:28,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e12817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:13:28, skipping insertion in model container
[2023-08-24 04:13:28,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:13:27" (2/3) ...
[2023-08-24 04:13:28,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e12817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:13:28, skipping insertion in model container
[2023-08-24 04:13:28,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:13:28" (3/3) ...
[2023-08-24 04:13:28,181 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i
[2023-08-24 04:13:28,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-24 04:13:28,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-08-24 04:13:28,194 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-24 04:13:28,262 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-08-24 04:13:28,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 131 transitions, 278 flow
[2023-08-24 04:13:28,330 INFO L124 PetriNetUnfolderBase]: 10/129 cut-off events.
[2023-08-24 04:13:28,330 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-08-24 04:13:28,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 10/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 3 conditions per place.
[2023-08-24 04:13:28,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 131 transitions, 278 flow
[2023-08-24 04:13:28,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 118 transitions, 248 flow
[2023-08-24 04:13:28,339 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-24 04:13:28,351 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 118 transitions, 248 flow
[2023-08-24 04:13:28,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 118 transitions, 248 flow
[2023-08-24 04:13:28,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 248 flow
[2023-08-24 04:13:28,388 INFO L124 PetriNetUnfolderBase]: 8/118 cut-off events.
[2023-08-24 04:13:28,389 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-08-24 04:13:28,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 118 events. 8/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place.
[2023-08-24 04:13:28,391 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922
[2023-08-24 04:13:32,728 INFO L134 LiptonReduction]: Checked pairs total: 4363
[2023-08-24 04:13:32,728 INFO L136 LiptonReduction]: Total number of compositions: 93
[2023-08-24 04:13:32,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-24 04:13:32,746 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;@7f6958a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-24 04:13:32,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-08-24 04:13:32,753 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-08-24 04:13:32,753 INFO L124 PetriNetUnfolderBase]: 5/29 cut-off events.
[2023-08-24 04:13:32,753 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-08-24 04:13:32,753 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:32,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:32,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:32,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:32,757 INFO L85 PathProgramCache]: Analyzing trace with hash -373663314, now seen corresponding path program 1 times
[2023-08-24 04:13:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:32,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917285513]
[2023-08-24 04:13:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:32,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917285513]
[2023-08-24 04:13:32,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917285513] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:32,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-24 04:13:32,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-24 04:13:32,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439742916]
[2023-08-24 04:13:32,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:33,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-24 04:13:33,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:33,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-24 04:13:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-24 04:13:33,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 224
[2023-08-24 04:13:33,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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)
[2023-08-24 04:13:33,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:33,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 224
[2023-08-24 04:13:33,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:33,121 INFO L124 PetriNetUnfolderBase]: 219/470 cut-off events.
[2023-08-24 04:13:33,121 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES.
[2023-08-24 04:13:33,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 470 events. 219/470 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2196 event pairs, 87 based on Foata normal form. 28/432 useless extension candidates. Maximal degree in co-relation 772. Up to 225 conditions per place.
[2023-08-24 04:13:33,127 INFO L140 encePairwiseOnDemand]: 220/224 looper letters, 34 selfloop transitions, 2 changer transitions 0/43 dead transitions.
[2023-08-24 04:13:33,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 43 transitions, 173 flow
[2023-08-24 04:13:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-24 04:13:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-24 04:13:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions.
[2023-08-24 04:13:33,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714
[2023-08-24 04:13:33,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions.
[2023-08-24 04:13:33,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions.
[2023-08-24 04:13:33,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:33,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions.
[2023-08-24 04:13:33,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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)
[2023-08-24 04:13:33,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,147 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 72 flow. Second operand 3 states and 384 transitions.
[2023-08-24 04:13:33,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 43 transitions, 173 flow
[2023-08-24 04:13:33,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 163 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-08-24 04:13:33,150 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 74 flow
[2023-08-24 04:13:33,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=31, PETRI_TRANSITIONS=30}
[2023-08-24 04:13:33,153 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places.
[2023-08-24 04:13:33,153 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 74 flow
[2023-08-24 04:13:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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)
[2023-08-24 04:13:33,154 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:33,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:33,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-24 04:13:33,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:33,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:33,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2115918277, now seen corresponding path program 1 times
[2023-08-24 04:13:33,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:33,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282671410]
[2023-08-24 04:13:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:33,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:33,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:33,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282671410]
[2023-08-24 04:13:33,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282671410] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:33,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-24 04:13:33,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-24 04:13:33,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676032447]
[2023-08-24 04:13:33,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:33,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-24 04:13:33,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:33,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-24 04:13:33,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-24 04:13:33,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 224
[2023-08-24 04:13:33,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-24 04:13:33,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:33,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 224
[2023-08-24 04:13:33,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:33,336 INFO L124 PetriNetUnfolderBase]: 357/694 cut-off events.
[2023-08-24 04:13:33,336 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES.
[2023-08-24 04:13:33,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 694 events. 357/694 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3192 event pairs, 141 based on Foata normal form. 0/648 useless extension candidates. Maximal degree in co-relation 442. Up to 347 conditions per place.
[2023-08-24 04:13:33,339 INFO L140 encePairwiseOnDemand]: 221/224 looper letters, 36 selfloop transitions, 2 changer transitions 0/45 dead transitions.
[2023-08-24 04:13:33,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 45 transitions, 191 flow
[2023-08-24 04:13:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-24 04:13:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-24 04:13:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions.
[2023-08-24 04:13:33,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095
[2023-08-24 04:13:33,342 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions.
[2023-08-24 04:13:33,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions.
[2023-08-24 04:13:33,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:33,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions.
[2023-08-24 04:13:33,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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)
[2023-08-24 04:13:33,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,345 INFO L175 Difference]: Start difference. First operand has 31 places, 30 transitions, 74 flow. Second operand 3 states and 376 transitions.
[2023-08-24 04:13:33,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 45 transitions, 191 flow
[2023-08-24 04:13:33,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-24 04:13:33,347 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 84 flow
[2023-08-24 04:13:33,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=31}
[2023-08-24 04:13:33,348 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places.
[2023-08-24 04:13:33,348 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 84 flow
[2023-08-24 04:13:33,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-24 04:13:33,350 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:33,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:33,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-08-24 04:13:33,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:33,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:33,356 INFO L85 PathProgramCache]: Analyzing trace with hash 26892520, now seen corresponding path program 1 times
[2023-08-24 04:13:33,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:33,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418836663]
[2023-08-24 04:13:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418836663]
[2023-08-24 04:13:33,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418836663] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-24 04:13:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-24 04:13:33,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730300752]
[2023-08-24 04:13:33,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:33,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-24 04:13:33,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:33,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-24 04:13:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-24 04:13:33,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 224
[2023-08-24 04:13:33,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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)
[2023-08-24 04:13:33,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:33,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 224
[2023-08-24 04:13:33,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:33,589 INFO L124 PetriNetUnfolderBase]: 309/688 cut-off events.
[2023-08-24 04:13:33,589 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES.
[2023-08-24 04:13:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 688 events. 309/688 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3367 event pairs, 105 based on Foata normal form. 80/740 useless extension candidates. Maximal degree in co-relation 413. Up to 316 conditions per place.
[2023-08-24 04:13:33,593 INFO L140 encePairwiseOnDemand]: 216/224 looper letters, 25 selfloop transitions, 10 changer transitions 0/40 dead transitions.
[2023-08-24 04:13:33,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 183 flow
[2023-08-24 04:13:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-24 04:13:33,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-24 04:13:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions.
[2023-08-24 04:13:33,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5148809523809523
[2023-08-24 04:13:33,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions.
[2023-08-24 04:13:33,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions.
[2023-08-24 04:13:33,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:33,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions.
[2023-08-24 04:13:33,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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)
[2023-08-24 04:13:33,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:33,596 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 84 flow. Second operand 3 states and 346 transitions.
[2023-08-24 04:13:33,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 183 flow
[2023-08-24 04:13:33,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-24 04:13:33,598 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 102 flow
[2023-08-24 04:13:33,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=34, PETRI_TRANSITIONS=31}
[2023-08-24 04:13:33,599 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places.
[2023-08-24 04:13:33,600 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 102 flow
[2023-08-24 04:13:33,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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)
[2023-08-24 04:13:33,600 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:33,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:33,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-08-24 04:13:33,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:33,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:33,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1826989588, now seen corresponding path program 2 times
[2023-08-24 04:13:33,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:33,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951491275]
[2023-08-24 04:13:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:33,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:33,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951491275]
[2023-08-24 04:13:33,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951491275] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-24 04:13:33,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318538194]
[2023-08-24 04:13:33,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-08-24 04:13:33,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:33,673 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)
[2023-08-24 04:13:33,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-08-24 04:13:33,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-08-24 04:13:33,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-24 04:13:33,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-08-24 04:13:33,776 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-08-24 04:13:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:33,833 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-08-24 04:13:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-24 04:13:33,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318538194] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-24 04:13:33,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-24 04:13:33,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2023-08-24 04:13:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849903139]
[2023-08-24 04:13:33,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-24 04:13:33,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-08-24 04:13:33,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:33,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-08-24 04:13:33,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-08-24 04:13:33,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 224
[2023-08-24 04:13:33,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 102 flow. Second operand has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 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)
[2023-08-24 04:13:33,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:33,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 224
[2023-08-24 04:13:33,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:34,070 INFO L124 PetriNetUnfolderBase]: 509/1236 cut-off events.
[2023-08-24 04:13:34,071 INFO L125 PetriNetUnfolderBase]: For 350/356 co-relation queries the response was YES.
[2023-08-24 04:13:34,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2805 conditions, 1236 events. 509/1236 cut-off events. For 350/356 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6749 event pairs, 42 based on Foata normal form. 96/1274 useless extension candidates. Maximal degree in co-relation 673. Up to 246 conditions per place.
[2023-08-24 04:13:34,076 INFO L140 encePairwiseOnDemand]: 217/224 looper letters, 113 selfloop transitions, 27 changer transitions 0/147 dead transitions.
[2023-08-24 04:13:34,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 147 transitions, 789 flow
[2023-08-24 04:13:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2023-08-24 04:13:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2023-08-24 04:13:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1541 transitions.
[2023-08-24 04:13:34,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291895604395604
[2023-08-24 04:13:34,079 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1541 transitions.
[2023-08-24 04:13:34,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1541 transitions.
[2023-08-24 04:13:34,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:34,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1541 transitions.
[2023-08-24 04:13:34,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.53846153846153) internal successors, (1541), 13 states have internal predecessors, (1541), 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)
[2023-08-24 04:13:34,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 224.0) internal successors, (3136), 14 states have internal predecessors, (3136), 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)
[2023-08-24 04:13:34,086 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 224.0) internal successors, (3136), 14 states have internal predecessors, (3136), 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)
[2023-08-24 04:13:34,086 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 102 flow. Second operand 13 states and 1541 transitions.
[2023-08-24 04:13:34,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 147 transitions, 789 flow
[2023-08-24 04:13:34,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 147 transitions, 721 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-24 04:13:34,092 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 325 flow
[2023-08-24 04:13:34,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=325, PETRI_PLACES=55, PETRI_TRANSITIONS=53}
[2023-08-24 04:13:34,093 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places.
[2023-08-24 04:13:34,093 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 325 flow
[2023-08-24 04:13:34,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 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)
[2023-08-24 04:13:34,094 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:34,094 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:34,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-08-24 04:13:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:34,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:34,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1311970565, now seen corresponding path program 3 times
[2023-08-24 04:13:34,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:34,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719616794]
[2023-08-24 04:13:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-08-24 04:13:34,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719616794]
[2023-08-24 04:13:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719616794] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-24 04:13:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4015556]
[2023-08-24 04:13:34,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-08-24 04:13:34,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:34,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:34,375 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)
[2023-08-24 04:13:34,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-08-24 04:13:34,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2023-08-24 04:13:34,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-24 04:13:34,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-08-24 04:13:34,508 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-08-24 04:13:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-08-24 04:13:34,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-24 04:13:34,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4015556] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:34,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-24 04:13:34,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2023-08-24 04:13:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510377767]
[2023-08-24 04:13:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:34,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-24 04:13:34,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:34,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-24 04:13:34,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-08-24 04:13:34,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 224
[2023-08-24 04:13:34,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 325 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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)
[2023-08-24 04:13:34,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:34,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 224
[2023-08-24 04:13:34,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:34,722 INFO L124 PetriNetUnfolderBase]: 800/1629 cut-off events.
[2023-08-24 04:13:34,722 INFO L125 PetriNetUnfolderBase]: For 3035/3035 co-relation queries the response was YES.
[2023-08-24 04:13:34,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4715 conditions, 1629 events. 800/1629 cut-off events. For 3035/3035 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8057 event pairs, 161 based on Foata normal form. 0/1513 useless extension candidates. Maximal degree in co-relation 3446. Up to 652 conditions per place.
[2023-08-24 04:13:34,729 INFO L140 encePairwiseOnDemand]: 216/224 looper letters, 90 selfloop transitions, 8 changer transitions 1/101 dead transitions.
[2023-08-24 04:13:34,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 101 transitions, 779 flow
[2023-08-24 04:13:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-24 04:13:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-24 04:13:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 615 transitions.
[2023-08-24 04:13:34,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5491071428571429
[2023-08-24 04:13:34,731 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 615 transitions.
[2023-08-24 04:13:34,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 615 transitions.
[2023-08-24 04:13:34,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:34,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 615 transitions.
[2023-08-24 04:13:34,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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)
[2023-08-24 04:13:34,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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)
[2023-08-24 04:13:34,733 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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)
[2023-08-24 04:13:34,733 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 325 flow. Second operand 5 states and 615 transitions.
[2023-08-24 04:13:34,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 101 transitions, 779 flow
[2023-08-24 04:13:34,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 101 transitions, 727 flow, removed 13 selfloop flow, removed 2 redundant places.
[2023-08-24 04:13:34,739 INFO L231 Difference]: Finished difference. Result has 61 places, 59 transitions, 345 flow
[2023-08-24 04:13:34,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=61, PETRI_TRANSITIONS=59}
[2023-08-24 04:13:34,739 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 29 predicate places.
[2023-08-24 04:13:34,739 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 345 flow
[2023-08-24 04:13:34,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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)
[2023-08-24 04:13:34,740 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:34,740 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:34,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-08-24 04:13:34,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:34,947 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:34,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1361604361, now seen corresponding path program 4 times
[2023-08-24 04:13:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:34,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43385657]
[2023-08-24 04:13:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-08-24 04:13:35,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43385657]
[2023-08-24 04:13:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43385657] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-24 04:13:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244085108]
[2023-08-24 04:13:35,017 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-08-24 04:13:35,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:35,018 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)
[2023-08-24 04:13:35,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-08-24 04:13:35,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-08-24 04:13:35,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-24 04:13:35,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-08-24 04:13:35,095 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-08-24 04:13:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-08-24 04:13:35,125 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-08-24 04:13:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-08-24 04:13:35,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244085108] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-24 04:13:35,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-24 04:13:35,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6
[2023-08-24 04:13:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323833789]
[2023-08-24 04:13:35,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-24 04:13:35,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-08-24 04:13:35,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:35,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-08-24 04:13:35,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-08-24 04:13:35,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 224
[2023-08-24 04:13:35,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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)
[2023-08-24 04:13:35,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:35,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 224
[2023-08-24 04:13:35,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:35,323 INFO L124 PetriNetUnfolderBase]: 639/1480 cut-off events.
[2023-08-24 04:13:35,323 INFO L125 PetriNetUnfolderBase]: For 3086/3104 co-relation queries the response was YES.
[2023-08-24 04:13:35,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4507 conditions, 1480 events. 639/1480 cut-off events. For 3086/3104 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7912 event pairs, 118 based on Foata normal form. 46/1518 useless extension candidates. Maximal degree in co-relation 3476. Up to 310 conditions per place.
[2023-08-24 04:13:35,330 INFO L140 encePairwiseOnDemand]: 220/224 looper letters, 75 selfloop transitions, 13 changer transitions 0/99 dead transitions.
[2023-08-24 04:13:35,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 99 transitions, 737 flow
[2023-08-24 04:13:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-24 04:13:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-24 04:13:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 634 transitions.
[2023-08-24 04:13:35,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5660714285714286
[2023-08-24 04:13:35,332 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 634 transitions.
[2023-08-24 04:13:35,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 634 transitions.
[2023-08-24 04:13:35,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:35,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 634 transitions.
[2023-08-24 04:13:35,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 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)
[2023-08-24 04:13:35,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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)
[2023-08-24 04:13:35,334 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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)
[2023-08-24 04:13:35,335 INFO L175 Difference]: Start difference. First operand has 61 places, 59 transitions, 345 flow. Second operand 5 states and 634 transitions.
[2023-08-24 04:13:35,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 99 transitions, 737 flow
[2023-08-24 04:13:35,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 99 transitions, 737 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-24 04:13:35,340 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 389 flow
[2023-08-24 04:13:35,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=67, PETRI_TRANSITIONS=60}
[2023-08-24 04:13:35,341 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 35 predicate places.
[2023-08-24 04:13:35,341 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 389 flow
[2023-08-24 04:13:35,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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)
[2023-08-24 04:13:35,341 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:35,341 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:35,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-08-24 04:13:35,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:35,546 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:35,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1041839656, now seen corresponding path program 5 times
[2023-08-24 04:13:35,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:35,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013604616]
[2023-08-24 04:13:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:35,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2023-08-24 04:13:35,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:35,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013604616]
[2023-08-24 04:13:35,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013604616] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:35,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-24 04:13:35,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-24 04:13:35,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253661211]
[2023-08-24 04:13:35,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:35,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-24 04:13:35,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-24 04:13:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-24 04:13:35,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 224
[2023-08-24 04:13:35,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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)
[2023-08-24 04:13:35,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:35,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 224
[2023-08-24 04:13:35,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:35,680 INFO L124 PetriNetUnfolderBase]: 528/1113 cut-off events.
[2023-08-24 04:13:35,680 INFO L125 PetriNetUnfolderBase]: For 2847/2847 co-relation queries the response was YES.
[2023-08-24 04:13:35,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3825 conditions, 1113 events. 528/1113 cut-off events. For 2847/2847 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5004 event pairs, 164 based on Foata normal form. 46/1159 useless extension candidates. Maximal degree in co-relation 3272. Up to 813 conditions per place.
[2023-08-24 04:13:35,685 INFO L140 encePairwiseOnDemand]: 219/224 looper letters, 54 selfloop transitions, 3 changer transitions 3/62 dead transitions.
[2023-08-24 04:13:35,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 485 flow
[2023-08-24 04:13:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-24 04:13:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-24 04:13:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions.
[2023-08-24 04:13:35,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5610119047619048
[2023-08-24 04:13:35,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions.
[2023-08-24 04:13:35,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions.
[2023-08-24 04:13:35,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:35,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions.
[2023-08-24 04:13:35,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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)
[2023-08-24 04:13:35,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:35,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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)
[2023-08-24 04:13:35,689 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 389 flow. Second operand 3 states and 377 transitions.
[2023-08-24 04:13:35,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 485 flow
[2023-08-24 04:13:35,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 462 flow, removed 5 selfloop flow, removed 5 redundant places.
[2023-08-24 04:13:35,693 INFO L231 Difference]: Finished difference. Result has 62 places, 49 transitions, 288 flow
[2023-08-24 04:13:35,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=62, PETRI_TRANSITIONS=49}
[2023-08-24 04:13:35,694 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 30 predicate places.
[2023-08-24 04:13:35,694 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 288 flow
[2023-08-24 04:13:35,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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)
[2023-08-24 04:13:35,694 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:35,694 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:35,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-08-24 04:13:35,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:35,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1414803876, now seen corresponding path program 6 times
[2023-08-24 04:13:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860278423]
[2023-08-24 04:13:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:35,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-24 04:13:35,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860278423]
[2023-08-24 04:13:35,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860278423] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-24 04:13:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562355272]
[2023-08-24 04:13:35,811 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-08-24 04:13:35,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:35,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:35,812 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)
[2023-08-24 04:13:35,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-08-24 04:13:35,971 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2023-08-24 04:13:35,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-24 04:13:35,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-08-24 04:13:35,974 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-08-24 04:13:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-08-24 04:13:36,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-24 04:13:36,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562355272] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-24 04:13:36,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-24 04:13:36,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7
[2023-08-24 04:13:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770080933]
[2023-08-24 04:13:36,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-24 04:13:36,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-08-24 04:13:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-08-24 04:13:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2023-08-24 04:13:36,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 224
[2023-08-24 04:13:36,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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)
[2023-08-24 04:13:36,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:36,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 224
[2023-08-24 04:13:36,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:36,160 INFO L124 PetriNetUnfolderBase]: 472/1003 cut-off events.
[2023-08-24 04:13:36,160 INFO L125 PetriNetUnfolderBase]: For 1814/1814 co-relation queries the response was YES.
[2023-08-24 04:13:36,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3336 conditions, 1003 events. 472/1003 cut-off events. For 1814/1814 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4334 event pairs, 123 based on Foata normal form. 18/1021 useless extension candidates. Maximal degree in co-relation 1477. Up to 429 conditions per place.
[2023-08-24 04:13:36,164 INFO L140 encePairwiseOnDemand]: 215/224 looper letters, 65 selfloop transitions, 10 changer transitions 0/77 dead transitions.
[2023-08-24 04:13:36,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 77 transitions, 580 flow
[2023-08-24 04:13:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-08-24 04:13:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-08-24 04:13:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 708 transitions.
[2023-08-24 04:13:36,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267857142857143
[2023-08-24 04:13:36,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 708 transitions.
[2023-08-24 04:13:36,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 708 transitions.
[2023-08-24 04:13:36,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:36,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 708 transitions.
[2023-08-24 04:13:36,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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)
[2023-08-24 04:13:36,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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)
[2023-08-24 04:13:36,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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)
[2023-08-24 04:13:36,170 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 288 flow. Second operand 6 states and 708 transitions.
[2023-08-24 04:13:36,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 77 transitions, 580 flow
[2023-08-24 04:13:36,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 77 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-24 04:13:36,176 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 332 flow
[2023-08-24 04:13:36,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=67, PETRI_TRANSITIONS=51}
[2023-08-24 04:13:36,178 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 35 predicate places.
[2023-08-24 04:13:36,178 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 332 flow
[2023-08-24 04:13:36,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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)
[2023-08-24 04:13:36,178 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:36,178 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:36,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-08-24 04:13:36,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:36,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:36,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2055301186, now seen corresponding path program 7 times
[2023-08-24 04:13:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:36,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553743791]
[2023-08-24 04:13:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:36,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-08-24 04:13:36,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-24 04:13:36,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553743791]
[2023-08-24 04:13:36,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553743791] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-24 04:13:36,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795767724]
[2023-08-24 04:13:36,548 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2023-08-24 04:13:36,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:36,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-24 04:13:36,549 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)
[2023-08-24 04:13:36,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-08-24 04:13:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-24 04:13:36,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-08-24 04:13:36,652 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-08-24 04:13:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-08-24 04:13:36,706 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-08-24 04:13:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-08-24 04:13:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795767724] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-24 04:13:36,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-24 04:13:36,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5
[2023-08-24 04:13:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769748902]
[2023-08-24 04:13:36,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-24 04:13:36,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-08-24 04:13:36,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-24 04:13:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-08-24 04:13:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-08-24 04:13:36,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 224
[2023-08-24 04:13:36,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 51 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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)
[2023-08-24 04:13:36,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-24 04:13:36,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 224
[2023-08-24 04:13:36,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-24 04:13:36,895 INFO L124 PetriNetUnfolderBase]: 325/706 cut-off events.
[2023-08-24 04:13:36,895 INFO L125 PetriNetUnfolderBase]: For 1613/1613 co-relation queries the response was YES.
[2023-08-24 04:13:36,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 706 events. 325/706 cut-off events. For 1613/1613 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2564 event pairs, 90 based on Foata normal form. 22/728 useless extension candidates. Maximal degree in co-relation 1227. Up to 300 conditions per place.
[2023-08-24 04:13:36,898 INFO L140 encePairwiseOnDemand]: 217/224 looper letters, 59 selfloop transitions, 8 changer transitions 0/69 dead transitions.
[2023-08-24 04:13:36,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 534 flow
[2023-08-24 04:13:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-08-24 04:13:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-08-24 04:13:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 706 transitions.
[2023-08-24 04:13:36,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5252976190476191
[2023-08-24 04:13:36,900 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 706 transitions.
[2023-08-24 04:13:36,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 706 transitions.
[2023-08-24 04:13:36,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-24 04:13:36,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 706 transitions.
[2023-08-24 04:13:36,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 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)
[2023-08-24 04:13:36,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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)
[2023-08-24 04:13:36,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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)
[2023-08-24 04:13:36,903 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 332 flow. Second operand 6 states and 706 transitions.
[2023-08-24 04:13:36,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 534 flow
[2023-08-24 04:13:36,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 500 flow, removed 9 selfloop flow, removed 6 redundant places.
[2023-08-24 04:13:36,907 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 265 flow
[2023-08-24 04:13:36,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=65, PETRI_TRANSITIONS=44}
[2023-08-24 04:13:36,908 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 33 predicate places.
[2023-08-24 04:13:36,908 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 265 flow
[2023-08-24 04:13:36,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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)
[2023-08-24 04:13:36,908 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-24 04:13:36,908 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-24 04:13:36,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-08-24 04:13:37,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-24 04:13:37,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-24 04:13:37,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-24 04:13:37,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1629587720, now seen corresponding path program 8 times
[2023-08-24 04:13:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-24 04:13:37,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575465051]
[2023-08-24 04:13:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-24 04:13:37,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-24 04:13:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-24 04:13:37,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-24 04:13:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-24 04:13:37,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-24 04:13:37,170 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-08-24 04:13:37,171 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2023-08-24 04:13:37,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2023-08-24 04:13:37,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2023-08-24 04:13:37,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-08-24 04:13:37,172 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1]
[2023-08-24 04:13:37,175 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-08-24 04:13:37,175 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-08-24 04:13:37,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 04:13:37 BasicIcfg
[2023-08-24 04:13:37,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-08-24 04:13:37,211 INFO L158 Benchmark]: Toolchain (without parser) took 9955.93ms. Allocated memory was 360.7MB in the beginning and 549.5MB in the end (delta: 188.7MB). Free memory was 335.0MB in the beginning and 257.6MB in the end (delta: 77.4MB). Peak memory consumption was 268.6MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,211 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 360.7MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB.
[2023-08-24 04:13:37,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.71ms. Allocated memory is still 360.7MB. Free memory was 334.5MB in the beginning and 308.1MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.12ms. Allocated memory is still 360.7MB. Free memory was 308.1MB in the beginning and 305.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,212 INFO L158 Benchmark]: Boogie Preprocessor took 38.39ms. Allocated memory is still 360.7MB. Free memory was 305.6MB in the beginning and 304.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,212 INFO L158 Benchmark]: RCFGBuilder took 416.71ms. Allocated memory is still 360.7MB. Free memory was 304.0MB in the beginning and 287.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,212 INFO L158 Benchmark]: TraceAbstraction took 9037.85ms. Allocated memory was 360.7MB in the beginning and 549.5MB in the end (delta: 188.7MB). Free memory was 286.7MB in the beginning and 257.6MB in the end (delta: 29.1MB). Peak memory consumption was 220.4MB. Max. memory is 16.0GB.
[2023-08-24 04:13:37,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 360.7MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB.
* CACSL2BoogieTranslator took 408.71ms. Allocated memory is still 360.7MB. Free memory was 334.5MB in the beginning and 308.1MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB.
* Boogie Procedure Inliner took 50.12ms. Allocated memory is still 360.7MB. Free memory was 308.1MB in the beginning and 305.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
* Boogie Preprocessor took 38.39ms. Allocated memory is still 360.7MB. Free memory was 305.6MB in the beginning and 304.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
* RCFGBuilder took 416.71ms. Allocated memory is still 360.7MB. Free memory was 304.0MB in the beginning and 287.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB.
* TraceAbstraction took 9037.85ms. Allocated memory was 360.7MB in the beginning and 549.5MB in the end (delta: 188.7MB). Free memory was 286.7MB in the beginning and 257.6MB in the end (delta: 29.1MB). Peak memory consumption was 220.4MB. Max. memory is 16.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResultAtLocation [Line: 218]: Unsoundness Warning
unspecified type, defaulting to int C: short [218]
- GenericResultAtLocation [Line: 219]: Unsoundness Warning
unspecified type, defaulting to int C: short [219]
- GenericResultAtLocation [Line: 730]: Unsoundness Warning
unspecified type, defaulting to int C: unsigned short [730]
- GenericResultAtLocation [Line: 871]: Unsoundness Warning
unspecified type, defaulting to int C: unsigned long [871]
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 4.4s, 117 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 30 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 93 TotalNumberOfCompositions, 4363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2172, independent: 2001, independent conditional: 0, independent unconditional: 2001, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1031, independent: 1001, independent conditional: 0, independent unconditional: 1001, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2172, independent: 1000, independent conditional: 0, independent unconditional: 1000, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 1031, unknown conditional: 0, unknown unconditional: 1031] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- CounterExampleResult [Line: 919]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L870] 0 int num;
[L871] 0 unsigned long total;
[L872] 0 int flag;
[L873] 0 pthread_mutex_t m;
[L874] 0 pthread_cond_t empty, full;
[L907] 0 pthread_t t1, t2;
[L908] 0 num = 0
[L909] 0 total = 0
[L913] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0)
VAL [arg={0:0}, empty={4:0}, flag=0, full={5:0}, m={3:0}, num=0, pthread_create(&t1, 0, thread1, 0)=-1, t1={7:0}, t2={6:0}, total=0]
[L876] 1 int i;
[L877] 1 i = 0
VAL [arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, total=0]
[L878] COND TRUE 1 i < 3
[L914] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0)
VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, pthread_create(&t2, 0, thread2, 0)=0, t1={7:0}, t2={6:0}, total=0]
[L880] COND FALSE 1 !(num > 0)
VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, total=0]
[L915] 0 \read(t1)
VAL [\read(t1)=-1, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, t1={7:0}, t2={6:0}, total=0]
[L890] 2 int j;
[L891] 2 j = 0
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=0, total=0]
[L882] 1 num++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=1, total=0]
[L885] 1 i++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=0, m={3:0}, num=1, total=0]
[L892] COND TRUE 2 j < 3
[L894] COND FALSE 2 !(num == 0)
[L896] 2 total = total + j
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=0, m={3:0}, num=1, total=0]
[L897] 2 num--
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=0, m={3:0}, num=0, total=0]
[L900] 2 j++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=0, total=0]
[L878] COND TRUE 1 i < 3
[L880] COND FALSE 1 !(num > 0)
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=0, total=0]
[L882] 1 num++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=1, total=0]
[L885] 1 i++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=1, m={3:0}, num=1, total=0]
[L892] COND TRUE 2 j < 3
[L894] COND FALSE 2 !(num == 0)
[L896] 2 total = total + j
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=1, m={3:0}, num=1, total=1]
[L897] 2 num--
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=1, m={3:0}, num=0, total=1]
[L900] 2 j++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=0, total=1]
[L878] COND TRUE 1 i < 3
[L880] COND FALSE 1 !(num > 0)
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=0, total=1]
[L882] 1 num++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=1, total=1]
[L885] 1 i++
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=1, total=1]
[L892] COND TRUE 2 j < 3
[L894] COND FALSE 2 !(num == 0)
[L896] 2 total = total + j
VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=1, total=3]
[L878] COND FALSE 1 !(i < 3)
[L887] 1 return ((void *)0);
[L915] FCALL, JOIN 1 pthread_join(t1, 0)
VAL [\read(t1)=-1, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=1, t1={7:0}, t2={6:0}, total=3]
[L916] 0 \read(t2)
VAL [\read(t2)=0, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=1, t1={7:0}, t2={6:0}, total=3]
[L897] 2 num--
VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=0, total=3]
[L900] 2 j++
VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=3, m={3:0}, num=0, total=3]
[L892] COND FALSE 2 !(j < 3)
[L902] 2 total = total + j
[L903] 2 flag = 1
[L904] 2 return ((void *)0);
[L916] FCALL, JOIN 2 pthread_join(t2, 0)
VAL [\read(t2)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={7:0}, t2={6:0}, total=6]
[L917] COND TRUE 0 \read(flag)
[L918] COND FALSE 0 !(total != ((3 * (3 + 1)) / 2))
[L919] 0 reach_error()
VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={7:0}, t2={6:0}, total=6]
- UnprovableResult [Line: 914]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Reason: Not analyzed.
- UnprovableResult [Line: 913]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 167 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 279 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1005 IncrementalHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 2 mSDtfsCounter, 1005 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 287 SyntacticMatches, 15 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=6, InterpolantAutomatonStates: 47, 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, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 510 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 1264 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1392 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 273/350 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2023-08-24 04:13:37,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...