./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:35:44,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:35:45,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:35:45,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:35:45,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:35:45,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:35:45,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:35:45,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:35:45,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:35:45,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:35:45,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:35:45,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:35:45,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:35:45,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:35:45,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:35:45,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:35:45,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:35:45,027 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:35:45,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:35:45,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:35:45,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:35:45,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:35:45,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:35:45,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:35:45,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:35:45,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:35:45,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:35:45,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:35:45,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:35:45,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:35:45,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:35:45,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:35:45,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:35:45,036 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2024-11-12 20:35:45,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:35:45,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:35:45,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:35:45,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:35:45,249 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:35:45,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-12 20:35:46,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:35:46,672 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:35:46,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-12 20:35:46,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669d2b443/8e837a7c94ef496ab0037e7bc917fcff/FLAG3675f7a21 [2024-11-12 20:35:46,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669d2b443/8e837a7c94ef496ab0037e7bc917fcff [2024-11-12 20:35:46,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:35:46,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:35:46,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:35:46,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:35:46,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:35:46,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:35:46" (1/1) ... [2024-11-12 20:35:46,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528fbe78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:46, skipping insertion in model container [2024-11-12 20:35:46,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:35:46" (1/1) ... [2024-11-12 20:35:46,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:35:47,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:35:47,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:35:47,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:35:47,258 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:35:47,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47 WrapperNode [2024-11-12 20:35:47,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:35:47,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:35:47,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:35:47,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:35:47,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,292 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-12 20:35:47,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:35:47,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:35:47,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:35:47,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:35:47,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,311 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-12 20:35:47,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:35:47,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:35:47,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:35:47,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:35:47,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (1/1) ... [2024-11-12 20:35:47,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:35:47,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:47,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:35:47,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:35:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:35:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:35:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:35:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-11-12 20:35:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-11-12 20:35:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:35:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:35:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:35:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:35:47,383 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:35:47,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:35:47,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:35:47,628 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:35:47,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:35:47,713 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:35:47,714 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 20:35:47,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:35:47 BoogieIcfgContainer [2024-11-12 20:35:47,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:35:47,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:35:47,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:35:47,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:35:47,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:35:46" (1/3) ... [2024-11-12 20:35:47,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac8bb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:35:47, skipping insertion in model container [2024-11-12 20:35:47,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:35:47" (2/3) ... [2024-11-12 20:35:47,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac8bb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:35:47, skipping insertion in model container [2024-11-12 20:35:47,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:35:47" (3/3) ... [2024-11-12 20:35:47,722 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-11-12 20:35:47,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:35:47,734 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-12 20:35:47,735 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:35:47,763 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 20:35:47,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 77 flow [2024-11-12 20:35:47,812 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-12 20:35:47,812 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:35:47,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 34 events. 2/34 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-12 20:35:47,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 77 flow [2024-11-12 20:35:47,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 32 transitions, 67 flow [2024-11-12 20:35:47,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:35:47,832 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@553dc1b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:35:47,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-12 20:35:47,836 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:35:47,836 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-12 20:35:47,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:35:47,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:47,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:47,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:47,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1980317922, now seen corresponding path program 1 times [2024-11-12 20:35:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:47,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937653655] [2024-11-12 20:35:47,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:48,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937653655] [2024-11-12 20:35:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937653655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:48,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:48,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 20:35:48,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950402076] [2024-11-12 20:35:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:48,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:35:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:35:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:35:48,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-12 20:35:48,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-12 20:35:48,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:48,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-12 20:35:48,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:48,161 INFO L124 PetriNetUnfolderBase]: 92/257 cut-off events. [2024-11-12 20:35:48,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:35:48,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 257 events. 92/257 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1173 event pairs, 22 based on Foata normal form. 4/232 useless extension candidates. Maximal degree in co-relation 437. Up to 152 conditions per place. [2024-11-12 20:35:48,168 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-11-12 20:35:48,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 141 flow [2024-11-12 20:35:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:35:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:35:48,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-12 20:35:48,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-12 20:35:48,180 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 67 flow. Second operand 3 states and 72 transitions. [2024-11-12 20:35:48,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 141 flow [2024-11-12 20:35:48,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:35:48,184 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 87 flow [2024-11-12 20:35:48,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2024-11-12 20:35:48,188 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2024-11-12 20:35:48,189 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 87 flow [2024-11-12 20:35:48,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-12 20:35:48,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:48,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:48,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:35:48,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:48,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1956177667, now seen corresponding path program 1 times [2024-11-12 20:35:48,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260699494] [2024-11-12 20:35:48,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:48,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:48,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:48,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260699494] [2024-11-12 20:35:48,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260699494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:48,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:48,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:35:48,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930188758] [2024-11-12 20:35:48,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:48,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:35:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:48,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:35:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:35:48,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:48,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-12 20:35:48,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:48,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:48,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:48,415 INFO L124 PetriNetUnfolderBase]: 118/307 cut-off events. [2024-11-12 20:35:48,415 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-12 20:35:48,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 307 events. 118/307 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1448 event pairs, 40 based on Foata normal form. 24/303 useless extension candidates. Maximal degree in co-relation 607. Up to 195 conditions per place. [2024-11-12 20:35:48,419 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 37 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-11-12 20:35:48,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 224 flow [2024-11-12 20:35:48,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:35:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:35:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-12 20:35:48,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-12 20:35:48,424 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 87 flow. Second operand 5 states and 107 transitions. [2024-11-12 20:35:48,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 224 flow [2024-11-12 20:35:48,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:35:48,427 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 126 flow [2024-11-12 20:35:48,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-11-12 20:35:48,429 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2024-11-12 20:35:48,430 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 126 flow [2024-11-12 20:35:48,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-12 20:35:48,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:48,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:48,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:35:48,430 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:48,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash 615279125, now seen corresponding path program 1 times [2024-11-12 20:35:48,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:48,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036909887] [2024-11-12 20:35:48,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:48,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:48,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036909887] [2024-11-12 20:35:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036909887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:48,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:48,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:48,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382655026] [2024-11-12 20:35:48,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:48,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:35:48,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:48,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:35:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:35:48,508 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-12 20:35:48,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-12 20:35:48,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:48,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-12 20:35:48,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:48,615 INFO L124 PetriNetUnfolderBase]: 142/394 cut-off events. [2024-11-12 20:35:48,616 INFO L125 PetriNetUnfolderBase]: For 194/219 co-relation queries the response was YES. [2024-11-12 20:35:48,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 394 events. 142/394 cut-off events. For 194/219 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1889 event pairs, 42 based on Foata normal form. 21/396 useless extension candidates. Maximal degree in co-relation 843. Up to 172 conditions per place. [2024-11-12 20:35:48,620 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 46 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-12 20:35:48,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 307 flow [2024-11-12 20:35:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:35:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:35:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-11-12 20:35:48,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-11-12 20:35:48,622 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 126 flow. Second operand 4 states and 99 transitions. [2024-11-12 20:35:48,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 307 flow [2024-11-12 20:35:48,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:35:48,626 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 142 flow [2024-11-12 20:35:48,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2024-11-12 20:35:48,628 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2024-11-12 20:35:48,628 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 142 flow [2024-11-12 20:35:48,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-12 20:35:48,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:48,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:48,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:35:48,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:48,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:48,630 INFO L85 PathProgramCache]: Analyzing trace with hash -526843008, now seen corresponding path program 1 times [2024-11-12 20:35:48,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:48,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209785452] [2024-11-12 20:35:48,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:48,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209785452] [2024-11-12 20:35:48,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209785452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:48,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:48,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:48,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924251508] [2024-11-12 20:35:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:48,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:35:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:35:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:35:48,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-12 20:35:48,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:35:48,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:48,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-12 20:35:48,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:48,789 INFO L124 PetriNetUnfolderBase]: 212/602 cut-off events. [2024-11-12 20:35:48,790 INFO L125 PetriNetUnfolderBase]: For 346/374 co-relation queries the response was YES. [2024-11-12 20:35:48,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 602 events. 212/602 cut-off events. For 346/374 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3212 event pairs, 97 based on Foata normal form. 24/603 useless extension candidates. Maximal degree in co-relation 1422. Up to 257 conditions per place. [2024-11-12 20:35:48,797 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-11-12 20:35:48,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 339 flow [2024-11-12 20:35:48,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:35:48,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:35:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-12 20:35:48,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-12 20:35:48,800 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 142 flow. Second operand 4 states and 98 transitions. [2024-11-12 20:35:48,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 339 flow [2024-11-12 20:35:48,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:35:48,805 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 164 flow [2024-11-12 20:35:48,806 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-11-12 20:35:48,807 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2024-11-12 20:35:48,807 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 164 flow [2024-11-12 20:35:48,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:35:48,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:48,808 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:48,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:35:48,808 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:48,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1187644930, now seen corresponding path program 1 times [2024-11-12 20:35:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686658325] [2024-11-12 20:35:48,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:48,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:48,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686658325] [2024-11-12 20:35:48,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686658325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:48,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302830718] [2024-11-12 20:35:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:48,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:35:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:35:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:35:48,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-12 20:35:48,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-12 20:35:48,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:48,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-12 20:35:48,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:48,957 INFO L124 PetriNetUnfolderBase]: 125/441 cut-off events. [2024-11-12 20:35:48,957 INFO L125 PetriNetUnfolderBase]: For 293/309 co-relation queries the response was YES. [2024-11-12 20:35:48,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 441 events. 125/441 cut-off events. For 293/309 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2146 event pairs, 43 based on Foata normal form. 20/459 useless extension candidates. Maximal degree in co-relation 1083. Up to 140 conditions per place. [2024-11-12 20:35:48,959 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 32 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-12 20:35:48,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 277 flow [2024-11-12 20:35:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:35:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:35:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-12 20:35:48,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-12 20:35:48,962 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 164 flow. Second operand 3 states and 75 transitions. [2024-11-12 20:35:48,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 277 flow [2024-11-12 20:35:48,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 267 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-12 20:35:48,964 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 151 flow [2024-11-12 20:35:48,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2024-11-12 20:35:48,965 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2024-11-12 20:35:48,965 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 151 flow [2024-11-12 20:35:48,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-12 20:35:48,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:48,967 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:48,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:35:48,967 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:48,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash -391971327, now seen corresponding path program 1 times [2024-11-12 20:35:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:48,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091331900] [2024-11-12 20:35:48,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:48,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:49,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091331900] [2024-11-12 20:35:49,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091331900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:49,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:49,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:49,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799027493] [2024-11-12 20:35:49,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:49,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:35:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:35:49,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:35:49,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:49,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:49,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:49,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:49,148 INFO L124 PetriNetUnfolderBase]: 232/655 cut-off events. [2024-11-12 20:35:49,148 INFO L125 PetriNetUnfolderBase]: For 455/491 co-relation queries the response was YES. [2024-11-12 20:35:49,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 655 events. 232/655 cut-off events. For 455/491 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3518 event pairs, 92 based on Foata normal form. 10/640 useless extension candidates. Maximal degree in co-relation 1750. Up to 249 conditions per place. [2024-11-12 20:35:49,151 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-11-12 20:35:49,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 65 transitions, 367 flow [2024-11-12 20:35:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:35:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:35:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-12 20:35:49,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-12 20:35:49,153 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 151 flow. Second operand 5 states and 107 transitions. [2024-11-12 20:35:49,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 65 transitions, 367 flow [2024-11-12 20:35:49,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 65 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:35:49,157 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 180 flow [2024-11-12 20:35:49,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-11-12 20:35:49,158 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2024-11-12 20:35:49,158 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 180 flow [2024-11-12 20:35:49,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:49,159 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:49,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:35:49,159 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:49,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash -298802143, now seen corresponding path program 1 times [2024-11-12 20:35:49,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:49,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293515200] [2024-11-12 20:35:49,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:49,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:49,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293515200] [2024-11-12 20:35:49,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293515200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:49,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:49,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:49,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622750262] [2024-11-12 20:35:49,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:49,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:35:49,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:49,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:35:49,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:35:49,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:49,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:49,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:49,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:49,353 INFO L124 PetriNetUnfolderBase]: 278/830 cut-off events. [2024-11-12 20:35:49,353 INFO L125 PetriNetUnfolderBase]: For 796/827 co-relation queries the response was YES. [2024-11-12 20:35:49,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2225 conditions, 830 events. 278/830 cut-off events. For 796/827 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4752 event pairs, 120 based on Foata normal form. 18/837 useless extension candidates. Maximal degree in co-relation 2204. Up to 302 conditions per place. [2024-11-12 20:35:49,357 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 69 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2024-11-12 20:35:49,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 87 transitions, 529 flow [2024-11-12 20:35:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:35:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:35:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-12 20:35:49,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-12 20:35:49,358 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 180 flow. Second operand 6 states and 133 transitions. [2024-11-12 20:35:49,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 87 transitions, 529 flow [2024-11-12 20:35:49,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:35:49,363 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 233 flow [2024-11-12 20:35:49,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2024-11-12 20:35:49,364 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2024-11-12 20:35:49,365 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 233 flow [2024-11-12 20:35:49,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:49,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:49,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:35:49,366 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:49,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1077199397, now seen corresponding path program 1 times [2024-11-12 20:35:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:49,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391778190] [2024-11-12 20:35:49,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391778190] [2024-11-12 20:35:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391778190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:49,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:49,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:49,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331304608] [2024-11-12 20:35:49,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:49,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:35:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:35:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:35:49,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:49,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:49,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:49,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:49,533 INFO L124 PetriNetUnfolderBase]: 282/802 cut-off events. [2024-11-12 20:35:49,533 INFO L125 PetriNetUnfolderBase]: For 1121/1192 co-relation queries the response was YES. [2024-11-12 20:35:49,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2328 conditions, 802 events. 282/802 cut-off events. For 1121/1192 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4410 event pairs, 119 based on Foata normal form. 5/805 useless extension candidates. Maximal degree in co-relation 2303. Up to 514 conditions per place. [2024-11-12 20:35:49,536 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 53 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-11-12 20:35:49,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 472 flow [2024-11-12 20:35:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:35:49,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:35:49,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-12 20:35:49,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-12 20:35:49,537 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 233 flow. Second operand 5 states and 107 transitions. [2024-11-12 20:35:49,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 472 flow [2024-11-12 20:35:49,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 465 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 20:35:49,540 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 267 flow [2024-11-12 20:35:49,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-11-12 20:35:49,540 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2024-11-12 20:35:49,540 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 267 flow [2024-11-12 20:35:49,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:49,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:49,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:35:49,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:49,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash -672931533, now seen corresponding path program 1 times [2024-11-12 20:35:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782781950] [2024-11-12 20:35:49,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:49,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782781950] [2024-11-12 20:35:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782781950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:49,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:49,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866628465] [2024-11-12 20:35:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:49,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:35:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:35:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:35:49,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:49,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:49,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:49,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:49,698 INFO L124 PetriNetUnfolderBase]: 279/872 cut-off events. [2024-11-12 20:35:49,698 INFO L125 PetriNetUnfolderBase]: For 1313/1320 co-relation queries the response was YES. [2024-11-12 20:35:49,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 872 events. 279/872 cut-off events. For 1313/1320 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5304 event pairs, 139 based on Foata normal form. 4/866 useless extension candidates. Maximal degree in co-relation 2478. Up to 520 conditions per place. [2024-11-12 20:35:49,702 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 54 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-11-12 20:35:49,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 514 flow [2024-11-12 20:35:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:35:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:35:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-11-12 20:35:49,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5469387755102041 [2024-11-12 20:35:49,703 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 267 flow. Second operand 7 states and 134 transitions. [2024-11-12 20:35:49,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 514 flow [2024-11-12 20:35:49,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 74 transitions, 501 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-12 20:35:49,706 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 310 flow [2024-11-12 20:35:49,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=69, PETRI_TRANSITIONS=50} [2024-11-12 20:35:49,707 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2024-11-12 20:35:49,707 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 310 flow [2024-11-12 20:35:49,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-12 20:35:49,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:49,707 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:49,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 20:35:49,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:49,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1579979810, now seen corresponding path program 1 times [2024-11-12 20:35:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:49,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63461291] [2024-11-12 20:35:49,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63461291] [2024-11-12 20:35:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63461291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132409186] [2024-11-12 20:35:49,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:49,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:49,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:49,776 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) [2024-11-12 20:35:49,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:35:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:49,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 20:35:49,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:49,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:35:49,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132409186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:49,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:35:49,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-12 20:35:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465825994] [2024-11-12 20:35:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:49,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:35:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:35:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:35:49,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:49,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-12 20:35:49,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:49,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:49,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:50,038 INFO L124 PetriNetUnfolderBase]: 261/800 cut-off events. [2024-11-12 20:35:50,039 INFO L125 PetriNetUnfolderBase]: For 1483/1509 co-relation queries the response was YES. [2024-11-12 20:35:50,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 800 events. 261/800 cut-off events. For 1483/1509 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4635 event pairs, 118 based on Foata normal form. 24/814 useless extension candidates. Maximal degree in co-relation 2294. Up to 496 conditions per place. [2024-11-12 20:35:50,043 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 45 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2024-11-12 20:35:50,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 445 flow [2024-11-12 20:35:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:35:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:35:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-11-12 20:35:50,044 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-12 20:35:50,044 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 310 flow. Second operand 6 states and 110 transitions. [2024-11-12 20:35:50,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 445 flow [2024-11-12 20:35:50,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 427 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-12 20:35:50,048 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 282 flow [2024-11-12 20:35:50,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2024-11-12 20:35:50,050 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2024-11-12 20:35:50,050 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 282 flow [2024-11-12 20:35:50,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-12 20:35:50,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:50,050 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:50,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 20:35:50,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-12 20:35:50,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:50,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1734733546, now seen corresponding path program 1 times [2024-11-12 20:35:50,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:50,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025243342] [2024-11-12 20:35:50,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:50,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:50,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:50,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025243342] [2024-11-12 20:35:50,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025243342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:50,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118448837] [2024-11-12 20:35:50,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:50,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:50,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:50,305 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) [2024-11-12 20:35:50,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 20:35:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:50,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 20:35:50,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:50,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:35:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:50,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118448837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:35:50,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:35:50,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-12 20:35:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444364608] [2024-11-12 20:35:50,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:35:50,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 20:35:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 20:35:50,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-12 20:35:50,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:50,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 282 flow. Second operand has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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) [2024-11-12 20:35:50,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:50,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:50,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:50,865 INFO L124 PetriNetUnfolderBase]: 646/1929 cut-off events. [2024-11-12 20:35:50,865 INFO L125 PetriNetUnfolderBase]: For 3104/3242 co-relation queries the response was YES. [2024-11-12 20:35:50,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5345 conditions, 1929 events. 646/1929 cut-off events. For 3104/3242 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 14161 event pairs, 102 based on Foata normal form. 73/1989 useless extension candidates. Maximal degree in co-relation 5317. Up to 415 conditions per place. [2024-11-12 20:35:50,873 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 166 selfloop transitions, 28 changer transitions 0/205 dead transitions. [2024-11-12 20:35:50,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 205 transitions, 1384 flow [2024-11-12 20:35:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 20:35:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-12 20:35:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 364 transitions. [2024-11-12 20:35:50,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-12 20:35:50,875 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 282 flow. Second operand 16 states and 364 transitions. [2024-11-12 20:35:50,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 205 transitions, 1384 flow [2024-11-12 20:35:50,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 205 transitions, 1369 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 20:35:50,880 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 576 flow [2024-11-12 20:35:50,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=576, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2024-11-12 20:35:50,881 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2024-11-12 20:35:50,881 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 576 flow [2024-11-12 20:35:50,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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) [2024-11-12 20:35:50,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:50,881 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:50,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 20:35:51,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-12 20:35:51,082 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:51,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:51,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1894710753, now seen corresponding path program 1 times [2024-11-12 20:35:51,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:51,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691337377] [2024-11-12 20:35:51,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:51,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:51,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:51,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691337377] [2024-11-12 20:35:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691337377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:51,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062441109] [2024-11-12 20:35:51,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:51,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:51,147 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) [2024-11-12 20:35:51,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 20:35:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:51,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:35:51,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:51,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:35:51,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062441109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:51,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:35:51,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-12 20:35:51,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262725709] [2024-11-12 20:35:51,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:51,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:35:51,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:35:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:35:51,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-12 20:35:51,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2024-11-12 20:35:51,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:51,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-12 20:35:51,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:51,464 INFO L124 PetriNetUnfolderBase]: 663/1900 cut-off events. [2024-11-12 20:35:51,464 INFO L125 PetriNetUnfolderBase]: For 3568/3686 co-relation queries the response was YES. [2024-11-12 20:35:51,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5691 conditions, 1900 events. 663/1900 cut-off events. For 3568/3686 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13926 event pairs, 60 based on Foata normal form. 63/1900 useless extension candidates. Maximal degree in co-relation 5655. Up to 813 conditions per place. [2024-11-12 20:35:51,473 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 120 selfloop transitions, 5 changer transitions 0/140 dead transitions. [2024-11-12 20:35:51,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 140 transitions, 1276 flow [2024-11-12 20:35:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:35:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:35:51,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-12 20:35:51,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2024-11-12 20:35:51,475 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 576 flow. Second operand 6 states and 137 transitions. [2024-11-12 20:35:51,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 140 transitions, 1276 flow [2024-11-12 20:35:51,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 140 transitions, 1078 flow, removed 84 selfloop flow, removed 6 redundant places. [2024-11-12 20:35:51,484 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 478 flow [2024-11-12 20:35:51,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=478, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-11-12 20:35:51,486 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-12 20:35:51,486 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 478 flow [2024-11-12 20:35:51,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2024-11-12 20:35:51,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:51,487 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:51,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 20:35:51,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:51,688 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:51,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash 637345145, now seen corresponding path program 1 times [2024-11-12 20:35:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:51,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249193341] [2024-11-12 20:35:51,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249193341] [2024-11-12 20:35:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249193341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751769619] [2024-11-12 20:35:51,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:51,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:51,734 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) [2024-11-12 20:35:51,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 20:35:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:51,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:35:51,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:51,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:35:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751769619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:51,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:35:51,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-12 20:35:51,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095961705] [2024-11-12 20:35:51,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:51,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:35:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:35:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:35:51,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-12 20:35:51,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:35:51,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:51,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-12 20:35:51,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:52,054 INFO L124 PetriNetUnfolderBase]: 675/1975 cut-off events. [2024-11-12 20:35:52,054 INFO L125 PetriNetUnfolderBase]: For 3492/3532 co-relation queries the response was YES. [2024-11-12 20:35:52,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 1975 events. 675/1975 cut-off events. For 3492/3532 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 14660 event pairs, 145 based on Foata normal form. 75/1966 useless extension candidates. Maximal degree in co-relation 5799. Up to 798 conditions per place. [2024-11-12 20:35:52,062 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 138 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-12 20:35:52,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 157 transitions, 1317 flow [2024-11-12 20:35:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:35:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:35:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2024-11-12 20:35:52,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 20:35:52,063 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 478 flow. Second operand 6 states and 140 transitions. [2024-11-12 20:35:52,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 157 transitions, 1317 flow [2024-11-12 20:35:52,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 157 transitions, 1292 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:35:52,070 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 479 flow [2024-11-12 20:35:52,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2024-11-12 20:35:52,070 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2024-11-12 20:35:52,070 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 479 flow [2024-11-12 20:35:52,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:35:52,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:52,071 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:35:52,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 20:35:52,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:52,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:52,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1717136704, now seen corresponding path program 1 times [2024-11-12 20:35:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:52,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921070225] [2024-11-12 20:35:52,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:52,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:35:52,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:52,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921070225] [2024-11-12 20:35:52,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921070225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:52,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:52,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90436733] [2024-11-12 20:35:52,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:52,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:35:52,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:35:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:35:52,304 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:35:52,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-12 20:35:52,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:52,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:35:52,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:52,474 INFO L124 PetriNetUnfolderBase]: 739/2092 cut-off events. [2024-11-12 20:35:52,474 INFO L125 PetriNetUnfolderBase]: For 3992/4002 co-relation queries the response was YES. [2024-11-12 20:35:52,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6358 conditions, 2092 events. 739/2092 cut-off events. For 3992/4002 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15140 event pairs, 177 based on Foata normal form. 75/2160 useless extension candidates. Maximal degree in co-relation 6324. Up to 824 conditions per place. [2024-11-12 20:35:52,484 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 112 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-11-12 20:35:52,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 131 transitions, 1134 flow [2024-11-12 20:35:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:35:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:35:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-11-12 20:35:52,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-12 20:35:52,485 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 479 flow. Second operand 4 states and 88 transitions. [2024-11-12 20:35:52,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 131 transitions, 1134 flow [2024-11-12 20:35:52,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 131 transitions, 1125 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:35:52,493 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 486 flow [2024-11-12 20:35:52,494 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-11-12 20:35:52,494 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-12 20:35:52,494 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 486 flow [2024-11-12 20:35:52,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-12 20:35:52,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:52,495 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:35:52,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 20:35:52,495 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:52,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:52,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1393508487, now seen corresponding path program 1 times [2024-11-12 20:35:52,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:52,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145481980] [2024-11-12 20:35:52,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:52,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:35:52,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:52,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145481980] [2024-11-12 20:35:52,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145481980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:35:52,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:35:52,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:35:52,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143364442] [2024-11-12 20:35:52,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:35:52,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:35:52,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:52,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:35:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:35:52,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:35:52,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-12 20:35:52,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:52,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:35:52,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:52,694 INFO L124 PetriNetUnfolderBase]: 730/1975 cut-off events. [2024-11-12 20:35:52,694 INFO L125 PetriNetUnfolderBase]: For 4169/4192 co-relation queries the response was YES. [2024-11-12 20:35:52,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6311 conditions, 1975 events. 730/1975 cut-off events. For 4169/4192 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13870 event pairs, 180 based on Foata normal form. 63/2034 useless extension candidates. Maximal degree in co-relation 6278. Up to 859 conditions per place. [2024-11-12 20:35:52,703 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 92 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-11-12 20:35:52,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 923 flow [2024-11-12 20:35:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:35:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:35:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-12 20:35:52,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-12 20:35:52,704 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 486 flow. Second operand 4 states and 86 transitions. [2024-11-12 20:35:52,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 923 flow [2024-11-12 20:35:52,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 111 transitions, 897 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-12 20:35:52,712 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 490 flow [2024-11-12 20:35:52,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=490, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-11-12 20:35:52,712 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-12 20:35:52,712 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 490 flow [2024-11-12 20:35:52,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-12 20:35:52,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:52,713 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:52,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 20:35:52,713 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:52,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -123948766, now seen corresponding path program 1 times [2024-11-12 20:35:52,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:52,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905732111] [2024-11-12 20:35:52,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:52,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:52,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:52,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905732111] [2024-11-12 20:35:52,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905732111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:52,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556120837] [2024-11-12 20:35:52,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:52,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:52,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:52,834 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) [2024-11-12 20:35:52,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 20:35:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:52,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 20:35:52,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:52,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:35:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:53,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556120837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:35:53,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:35:53,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-12 20:35:53,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798565264] [2024-11-12 20:35:53,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:35:53,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 20:35:53,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 20:35:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-11-12 20:35:53,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:53,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 490 flow. Second operand has 22 states, 22 states have (on average 14.818181818181818) internal successors, (326), 22 states have internal predecessors, (326), 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) [2024-11-12 20:35:53,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:53,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:53,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:54,796 INFO L124 PetriNetUnfolderBase]: 3176/8723 cut-off events. [2024-11-12 20:35:54,796 INFO L125 PetriNetUnfolderBase]: For 31435/31435 co-relation queries the response was YES. [2024-11-12 20:35:54,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28183 conditions, 8723 events. 3176/8723 cut-off events. For 31435/31435 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 70559 event pairs, 357 based on Foata normal form. 412/9109 useless extension candidates. Maximal degree in co-relation 28150. Up to 1325 conditions per place. [2024-11-12 20:35:54,831 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 653 selfloop transitions, 116 changer transitions 0/778 dead transitions. [2024-11-12 20:35:54,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 778 transitions, 6020 flow [2024-11-12 20:35:54,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-12 20:35:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-12 20:35:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 1395 transitions. [2024-11-12 20:35:54,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6755447941888619 [2024-11-12 20:35:54,838 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 490 flow. Second operand 59 states and 1395 transitions. [2024-11-12 20:35:54,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 778 transitions, 6020 flow [2024-11-12 20:35:54,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 778 transitions, 5750 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:35:54,922 INFO L231 Difference]: Finished difference. Result has 178 places, 170 transitions, 1788 flow [2024-11-12 20:35:54,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=1788, PETRI_PLACES=178, PETRI_TRANSITIONS=170} [2024-11-12 20:35:54,923 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 144 predicate places. [2024-11-12 20:35:54,924 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 170 transitions, 1788 flow [2024-11-12 20:35:54,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.818181818181818) internal successors, (326), 22 states have internal predecessors, (326), 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) [2024-11-12 20:35:54,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:35:54,924 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:35:54,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 20:35:55,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-12 20:35:55,130 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:35:55,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:35:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash 124617666, now seen corresponding path program 1 times [2024-11-12 20:35:55,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:35:55,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318618419] [2024-11-12 20:35:55,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:35:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:35:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318618419] [2024-11-12 20:35:55,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318618419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:35:55,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249408265] [2024-11-12 20:35:55,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:35:55,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:35:55,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:35:55,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:35:55,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 20:35:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:35:55,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 20:35:55,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:35:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:55,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:35:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:35:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249408265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:35:55,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:35:55,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-12 20:35:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018792195] [2024-11-12 20:35:55,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:35:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-12 20:35:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:35:55,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-12 20:35:55,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=376, Unknown=0, NotChecked=0, Total=600 [2024-11-12 20:35:55,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:35:55,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 170 transitions, 1788 flow. Second operand has 25 states, 25 states have (on average 15.92) internal successors, (398), 25 states have internal predecessors, (398), 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) [2024-11-12 20:35:55,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:35:55,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:35:55,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:35:59,803 INFO L124 PetriNetUnfolderBase]: 8338/23336 cut-off events. [2024-11-12 20:35:59,803 INFO L125 PetriNetUnfolderBase]: For 414632/414632 co-relation queries the response was YES. [2024-11-12 20:35:59,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80348 conditions, 23336 events. 8338/23336 cut-off events. For 414632/414632 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 216100 event pairs, 1838 based on Foata normal form. 595/23884 useless extension candidates. Maximal degree in co-relation 80274. Up to 3588 conditions per place. [2024-11-12 20:35:59,962 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 625 selfloop transitions, 382 changer transitions 0/1016 dead transitions. [2024-11-12 20:35:59,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 1016 transitions, 10163 flow [2024-11-12 20:35:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-12 20:35:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2024-11-12 20:35:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 1222 transitions. [2024-11-12 20:35:59,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6465608465608466 [2024-11-12 20:35:59,965 INFO L175 Difference]: Start difference. First operand has 178 places, 170 transitions, 1788 flow. Second operand 54 states and 1222 transitions. [2024-11-12 20:35:59,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 1016 transitions, 10163 flow [2024-11-12 20:36:00,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 1016 transitions, 8307 flow, removed 831 selfloop flow, removed 15 redundant places. [2024-11-12 20:36:00,561 INFO L231 Difference]: Finished difference. Result has 249 places, 504 transitions, 5185 flow [2024-11-12 20:36:00,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=5185, PETRI_PLACES=249, PETRI_TRANSITIONS=504} [2024-11-12 20:36:00,562 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 215 predicate places. [2024-11-12 20:36:00,562 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 504 transitions, 5185 flow [2024-11-12 20:36:00,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.92) internal successors, (398), 25 states have internal predecessors, (398), 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) [2024-11-12 20:36:00,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:00,563 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-12 20:36:00,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 20:36:00,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-12 20:36:00,763 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:36:00,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:00,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1461579277, now seen corresponding path program 2 times [2024-11-12 20:36:00,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:00,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568772365] [2024-11-12 20:36:00,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:00,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:01,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568772365] [2024-11-12 20:36:01,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568772365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:36:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138052436] [2024-11-12 20:36:01,046 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:36:01,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:01,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:01,048 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:36:01,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 20:36:01,128 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 20:36:01,128 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 20:36:01,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 20:36:01,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:36:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:01,212 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:36:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:01,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138052436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:36:01,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:36:01,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2024-11-12 20:36:01,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784690337] [2024-11-12 20:36:01,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:36:01,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-12 20:36:01,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:01,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-12 20:36:01,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2024-11-12 20:36:01,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:36:01,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 504 transitions, 5185 flow. Second operand has 31 states, 31 states have (on average 15.35483870967742) internal successors, (476), 31 states have internal predecessors, (476), 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) [2024-11-12 20:36:01,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:01,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:36:01,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:36:15,641 INFO L124 PetriNetUnfolderBase]: 19503/54075 cut-off events. [2024-11-12 20:36:15,641 INFO L125 PetriNetUnfolderBase]: For 2110005/2110005 co-relation queries the response was YES. [2024-11-12 20:36:16,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187673 conditions, 54075 events. 19503/54075 cut-off events. For 2110005/2110005 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 574436 event pairs, 2409 based on Foata normal form. 1275/55256 useless extension candidates. Maximal degree in co-relation 187566. Up to 8686 conditions per place. [2024-11-12 20:36:16,443 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 1264 selfloop transitions, 1084 changer transitions 0/2357 dead transitions. [2024-11-12 20:36:16,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 2357 transitions, 23831 flow [2024-11-12 20:36:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-12 20:36:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2024-11-12 20:36:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 2615 transitions. [2024-11-12 20:36:16,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6670918367346939 [2024-11-12 20:36:16,447 INFO L175 Difference]: Start difference. First operand has 249 places, 504 transitions, 5185 flow. Second operand 112 states and 2615 transitions. [2024-11-12 20:36:16,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 2357 transitions, 23831 flow [2024-11-12 20:36:19,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 2357 transitions, 23166 flow, removed 317 selfloop flow, removed 11 redundant places. [2024-11-12 20:36:19,225 INFO L231 Difference]: Finished difference. Result has 404 places, 1189 transitions, 15400 flow [2024-11-12 20:36:19,226 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=4750, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=450, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=112, PETRI_FLOW=15400, PETRI_PLACES=404, PETRI_TRANSITIONS=1189} [2024-11-12 20:36:19,226 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 370 predicate places. [2024-11-12 20:36:19,226 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1189 transitions, 15400 flow [2024-11-12 20:36:19,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.35483870967742) internal successors, (476), 31 states have internal predecessors, (476), 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) [2024-11-12 20:36:19,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:36:19,226 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:36:19,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 20:36:19,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:19,427 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:36:19,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:36:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1457796694, now seen corresponding path program 1 times [2024-11-12 20:36:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:36:19,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068082736] [2024-11-12 20:36:19,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:19,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:36:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:19,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:36:19,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068082736] [2024-11-12 20:36:19,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068082736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:36:19,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163386658] [2024-11-12 20:36:19,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:36:19,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:36:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:36:19,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:36:19,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 20:36:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:36:19,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-12 20:36:19,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:36:20,006 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:20,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:36:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:36:20,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163386658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:36:20,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:36:20,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 40 [2024-11-12 20:36:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347881017] [2024-11-12 20:36:20,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:36:20,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-12 20:36:20,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:36:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-12 20:36:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 20:36:20,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-12 20:36:20,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1189 transitions, 15400 flow. Second operand has 42 states, 42 states have (on average 15.119047619047619) internal successors, (635), 42 states have internal predecessors, (635), 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) [2024-11-12 20:36:20,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:36:20,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-12 20:36:20,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand