./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:39:51,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:39:51,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:39:51,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:39:51,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:39:51,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:39:51,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:39:51,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:39:51,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:39:51,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:39:51,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:39:51,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:39:51,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:39:51,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:39:51,915 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:39:51,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:39:51,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:39:51,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:39:51,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:39:51,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:39:51,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:39:51,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:39:51,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:39:51,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:39:51,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:39:51,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:39:51,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:39:51,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:39:51,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:39:51,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:39:51,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:39:51,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:39:51,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:39:51,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:39:51,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:39:51,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:39:51,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:39:51,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:39:51,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:39:51,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:39:51,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:39:51,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:39:51,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:39:51,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:39:51,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2024-10-13 16:39:52,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:39:52,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:39:52,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:39:52,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:39:52,254 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:39:52,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-10-13 16:39:53,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:39:54,035 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:39:54,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-10-13 16:39:54,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abb28ce0/aab0db292ac449408d40378bbbc6247f/FLAG335b6013f [2024-10-13 16:39:54,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abb28ce0/aab0db292ac449408d40378bbbc6247f [2024-10-13 16:39:54,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:39:54,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:39:54,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:39:54,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:39:54,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:39:54,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9099bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54, skipping insertion in model container [2024-10-13 16:39:54,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:39:54,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:39:54,643 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:39:54,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:39:54,777 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:39:54,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54 WrapperNode [2024-10-13 16:39:54,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:39:54,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:39:54,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:39:54,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:39:54,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,834 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-10-13 16:39:54,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:39:54,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:39:54,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:39:54,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:39:54,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,866 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]. [2024-10-13 16:39:54,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:39:54,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:39:54,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:39:54,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:39:54,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (1/1) ... [2024-10-13 16:39:54,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:39:54,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:54,914 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) [2024-10-13 16:39:54,916 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 [2024-10-13 16:39:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 16:39:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 16:39:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:39:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-10-13 16:39:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-10-13 16:39:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:39:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:39:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:39:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:39:54,960 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:39:55,128 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:39:55,129 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:39:55,297 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:39:55,298 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:39:55,436 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:39:55,436 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 16:39:55,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:39:55 BoogieIcfgContainer [2024-10-13 16:39:55,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:39:55,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:39:55,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:39:55,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:39:55,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:39:54" (1/3) ... [2024-10-13 16:39:55,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0b8ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:39:55, skipping insertion in model container [2024-10-13 16:39:55,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:54" (2/3) ... [2024-10-13 16:39:55,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0b8ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:39:55, skipping insertion in model container [2024-10-13 16:39:55,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:39:55" (3/3) ... [2024-10-13 16:39:55,448 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-10-13 16:39:55,465 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:39:55,466 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-13 16:39:55,468 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:39:55,507 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 16:39:55,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 77 flow [2024-10-13 16:39:55,574 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-10-13 16:39:55,574 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 16:39:55,580 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. [2024-10-13 16:39:55,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 77 flow [2024-10-13 16:39:55,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 32 transitions, 67 flow [2024-10-13 16:39:55,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:39:55,597 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;@2118ed64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:39:55,597 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-13 16:39:55,606 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:39:55,608 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-13 16:39:55,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:55,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:55,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:55,610 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)] === [2024-10-13 16:39:55,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1980317922, now seen corresponding path program 1 times [2024-10-13 16:39:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:55,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42303460] [2024-10-13 16:39:55,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:55,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:55,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:55,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42303460] [2024-10-13 16:39:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42303460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:55,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:55,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:39:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207082847] [2024-10-13 16:39:55,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:55,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:55,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:55,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:55,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:55,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-13 16:39:55,949 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) [2024-10-13 16:39:55,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:55,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-13 16:39:55,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:56,058 INFO L124 PetriNetUnfolderBase]: 92/257 cut-off events. [2024-10-13 16:39:56,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:56,061 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. [2024-10-13 16:39:56,067 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-10-13 16:39:56,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 141 flow [2024-10-13 16:39:56,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-10-13 16:39:56,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-10-13 16:39:56,080 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 67 flow. Second operand 3 states and 72 transitions. [2024-10-13 16:39:56,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 141 flow [2024-10-13 16:39:56,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:56,085 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 87 flow [2024-10-13 16:39:56,087 INFO L260 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} [2024-10-13 16:39:56,090 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2024-10-13 16:39:56,090 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 87 flow [2024-10-13 16:39:56,090 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) [2024-10-13 16:39:56,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:56,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:56,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:39:56,091 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)] === [2024-10-13 16:39:56,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1956177667, now seen corresponding path program 1 times [2024-10-13 16:39:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:56,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563664634] [2024-10-13 16:39:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:56,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:56,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:56,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563664634] [2024-10-13 16:39:56,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563664634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:56,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:56,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:56,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743223458] [2024-10-13 16:39:56,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:56,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:56,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:56,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:56,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:56,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:56,224 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) [2024-10-13 16:39:56,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:56,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:56,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:56,383 INFO L124 PetriNetUnfolderBase]: 118/307 cut-off events. [2024-10-13 16:39:56,384 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-10-13 16:39:56,385 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. [2024-10-13 16:39:56,387 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 37 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-10-13 16:39:56,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 224 flow [2024-10-13 16:39:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:39:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:39:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-13 16:39:56,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-10-13 16:39:56,390 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 87 flow. Second operand 5 states and 107 transitions. [2024-10-13 16:39:56,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 224 flow [2024-10-13 16:39:56,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:56,392 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 126 flow [2024-10-13 16:39:56,392 INFO L260 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} [2024-10-13 16:39:56,393 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2024-10-13 16:39:56,393 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 126 flow [2024-10-13 16:39:56,394 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) [2024-10-13 16:39:56,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:56,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:56,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:39:56,394 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)] === [2024-10-13 16:39:56,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:56,395 INFO L85 PathProgramCache]: Analyzing trace with hash 615279125, now seen corresponding path program 1 times [2024-10-13 16:39:56,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:56,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863667586] [2024-10-13 16:39:56,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:56,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:56,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:56,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863667586] [2024-10-13 16:39:56,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863667586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:56,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:56,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266410816] [2024-10-13 16:39:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:56,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:56,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:56,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-13 16:39:56,500 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) [2024-10-13 16:39:56,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:56,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-13 16:39:56,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:56,647 INFO L124 PetriNetUnfolderBase]: 142/394 cut-off events. [2024-10-13 16:39:56,648 INFO L125 PetriNetUnfolderBase]: For 194/219 co-relation queries the response was YES. [2024-10-13 16:39:56,650 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. [2024-10-13 16:39:56,654 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 46 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-10-13 16:39:56,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 307 flow [2024-10-13 16:39:56,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-10-13 16:39:56,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-10-13 16:39:56,657 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 126 flow. Second operand 4 states and 99 transitions. [2024-10-13 16:39:56,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 307 flow [2024-10-13 16:39:56,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:56,663 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 142 flow [2024-10-13 16:39:56,663 INFO L260 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} [2024-10-13 16:39:56,664 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2024-10-13 16:39:56,665 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 142 flow [2024-10-13 16:39:56,665 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) [2024-10-13 16:39:56,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:56,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:56,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:39:56,666 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)] === [2024-10-13 16:39:56,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash -526843008, now seen corresponding path program 1 times [2024-10-13 16:39:56,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:56,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117538371] [2024-10-13 16:39:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:56,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:56,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:56,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:56,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117538371] [2024-10-13 16:39:56,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117538371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:56,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:56,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783162480] [2024-10-13 16:39:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:56,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:56,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:56,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-13 16:39:56,777 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) [2024-10-13 16:39:56,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:56,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-13 16:39:56,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:56,911 INFO L124 PetriNetUnfolderBase]: 212/602 cut-off events. [2024-10-13 16:39:56,912 INFO L125 PetriNetUnfolderBase]: For 346/374 co-relation queries the response was YES. [2024-10-13 16:39:56,914 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. [2024-10-13 16:39:56,918 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-10-13 16:39:56,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 339 flow [2024-10-13 16:39:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-10-13 16:39:56,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-10-13 16:39:56,922 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 142 flow. Second operand 4 states and 98 transitions. [2024-10-13 16:39:56,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 339 flow [2024-10-13 16:39:56,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:56,928 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 164 flow [2024-10-13 16:39:56,929 INFO L260 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} [2024-10-13 16:39:56,930 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2024-10-13 16:39:56,930 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 164 flow [2024-10-13 16:39:56,931 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) [2024-10-13 16:39:56,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:56,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:56,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:39:56,932 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)] === [2024-10-13 16:39:56,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:56,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1187644930, now seen corresponding path program 1 times [2024-10-13 16:39:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:56,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011704025] [2024-10-13 16:39:56,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:56,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:57,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:57,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011704025] [2024-10-13 16:39:57,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011704025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:57,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:57,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:57,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834246459] [2024-10-13 16:39:57,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:57,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:57,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:57,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-10-13 16:39:57,044 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) [2024-10-13 16:39:57,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:57,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-10-13 16:39:57,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:57,125 INFO L124 PetriNetUnfolderBase]: 125/441 cut-off events. [2024-10-13 16:39:57,125 INFO L125 PetriNetUnfolderBase]: For 293/309 co-relation queries the response was YES. [2024-10-13 16:39:57,126 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. [2024-10-13 16:39:57,129 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 32 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-10-13 16:39:57,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 277 flow [2024-10-13 16:39:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-10-13 16:39:57,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-13 16:39:57,133 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 164 flow. Second operand 3 states and 75 transitions. [2024-10-13 16:39:57,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 277 flow [2024-10-13 16:39:57,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 267 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:57,140 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 151 flow [2024-10-13 16:39:57,140 INFO L260 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} [2024-10-13 16:39:57,141 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2024-10-13 16:39:57,141 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 151 flow [2024-10-13 16:39:57,143 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) [2024-10-13 16:39:57,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:57,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:57,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:39:57,143 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)] === [2024-10-13 16:39:57,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash -391971327, now seen corresponding path program 1 times [2024-10-13 16:39:57,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:57,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046458236] [2024-10-13 16:39:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:57,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:57,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:57,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046458236] [2024-10-13 16:39:57,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046458236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:57,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:57,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789361139] [2024-10-13 16:39:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:57,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:39:57,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:39:57,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:39:57,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:57,254 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) [2024-10-13 16:39:57,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:57,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:57,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:57,404 INFO L124 PetriNetUnfolderBase]: 232/655 cut-off events. [2024-10-13 16:39:57,404 INFO L125 PetriNetUnfolderBase]: For 455/491 co-relation queries the response was YES. [2024-10-13 16:39:57,406 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. [2024-10-13 16:39:57,409 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-10-13 16:39:57,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 65 transitions, 367 flow [2024-10-13 16:39:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:39:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:39:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-13 16:39:57,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-10-13 16:39:57,411 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 151 flow. Second operand 5 states and 107 transitions. [2024-10-13 16:39:57,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 65 transitions, 367 flow [2024-10-13 16:39:57,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 65 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:57,414 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 180 flow [2024-10-13 16:39:57,414 INFO L260 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} [2024-10-13 16:39:57,415 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2024-10-13 16:39:57,415 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 180 flow [2024-10-13 16:39:57,415 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) [2024-10-13 16:39:57,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:57,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:57,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:39:57,416 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)] === [2024-10-13 16:39:57,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash -298802143, now seen corresponding path program 1 times [2024-10-13 16:39:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823568196] [2024-10-13 16:39:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:57,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:57,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823568196] [2024-10-13 16:39:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823568196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645687829] [2024-10-13 16:39:57,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:57,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:39:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:39:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:39:57,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:57,492 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) [2024-10-13 16:39:57,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:57,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:57,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:57,678 INFO L124 PetriNetUnfolderBase]: 278/830 cut-off events. [2024-10-13 16:39:57,678 INFO L125 PetriNetUnfolderBase]: For 796/827 co-relation queries the response was YES. [2024-10-13 16:39:57,680 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. [2024-10-13 16:39:57,699 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 69 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2024-10-13 16:39:57,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 87 transitions, 529 flow [2024-10-13 16:39:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:39:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:39:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-10-13 16:39:57,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-10-13 16:39:57,701 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 180 flow. Second operand 6 states and 133 transitions. [2024-10-13 16:39:57,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 87 transitions, 529 flow [2024-10-13 16:39:57,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:57,707 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 233 flow [2024-10-13 16:39:57,707 INFO L260 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} [2024-10-13 16:39:57,708 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2024-10-13 16:39:57,708 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 233 flow [2024-10-13 16:39:57,708 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) [2024-10-13 16:39:57,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:57,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:57,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:39:57,709 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)] === [2024-10-13 16:39:57,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:57,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1077199397, now seen corresponding path program 1 times [2024-10-13 16:39:57,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:57,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088249754] [2024-10-13 16:39:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:57,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:57,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088249754] [2024-10-13 16:39:57,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088249754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:57,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:57,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053379935] [2024-10-13 16:39:57,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:57,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:39:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:39:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:39:57,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:57,783 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) [2024-10-13 16:39:57,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:57,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:57,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:57,918 INFO L124 PetriNetUnfolderBase]: 282/802 cut-off events. [2024-10-13 16:39:57,918 INFO L125 PetriNetUnfolderBase]: For 1121/1192 co-relation queries the response was YES. [2024-10-13 16:39:57,920 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. [2024-10-13 16:39:57,923 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 53 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-10-13 16:39:57,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 472 flow [2024-10-13 16:39:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:39:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:39:57,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-13 16:39:57,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-10-13 16:39:57,925 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 233 flow. Second operand 5 states and 107 transitions. [2024-10-13 16:39:57,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 472 flow [2024-10-13 16:39:57,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 465 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:57,930 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 267 flow [2024-10-13 16:39:57,930 INFO L260 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} [2024-10-13 16:39:57,931 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2024-10-13 16:39:57,932 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 267 flow [2024-10-13 16:39:57,932 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) [2024-10-13 16:39:57,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:57,932 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:57,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 16:39:57,934 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)] === [2024-10-13 16:39:57,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:57,935 INFO L85 PathProgramCache]: Analyzing trace with hash -672931533, now seen corresponding path program 1 times [2024-10-13 16:39:57,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:57,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089492601] [2024-10-13 16:39:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:57,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:57,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:57,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089492601] [2024-10-13 16:39:57,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089492601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:57,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:57,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:57,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031178838] [2024-10-13 16:39:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:57,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:39:57,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:39:57,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:39:58,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:58,004 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) [2024-10-13 16:39:58,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:58,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:58,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:58,158 INFO L124 PetriNetUnfolderBase]: 279/872 cut-off events. [2024-10-13 16:39:58,158 INFO L125 PetriNetUnfolderBase]: For 1313/1320 co-relation queries the response was YES. [2024-10-13 16:39:58,160 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. [2024-10-13 16:39:58,164 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 54 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-10-13 16:39:58,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 514 flow [2024-10-13 16:39:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:39:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:39:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-10-13 16:39:58,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5469387755102041 [2024-10-13 16:39:58,166 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 267 flow. Second operand 7 states and 134 transitions. [2024-10-13 16:39:58,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 514 flow [2024-10-13 16:39:58,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 74 transitions, 501 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:58,170 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 310 flow [2024-10-13 16:39:58,170 INFO L260 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} [2024-10-13 16:39:58,171 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2024-10-13 16:39:58,171 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 310 flow [2024-10-13 16:39:58,171 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) [2024-10-13 16:39:58,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:58,171 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:58,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:39:58,172 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)] === [2024-10-13 16:39:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1579979810, now seen corresponding path program 1 times [2024-10-13 16:39:58,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:58,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431972215] [2024-10-13 16:39:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:58,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:58,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:58,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431972215] [2024-10-13 16:39:58,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431972215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:58,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555527001] [2024-10-13 16:39:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:58,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:58,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:58,275 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) [2024-10-13 16:39:58,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:39:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:58,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:39:58,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:58,413 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:39:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555527001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:58,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:39:58,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:39:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903057873] [2024-10-13 16:39:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:58,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:39:58,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:39:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:39:58,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:58,429 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) [2024-10-13 16:39:58,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:58,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:58,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:58,614 INFO L124 PetriNetUnfolderBase]: 261/800 cut-off events. [2024-10-13 16:39:58,615 INFO L125 PetriNetUnfolderBase]: For 1483/1509 co-relation queries the response was YES. [2024-10-13 16:39:58,617 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. [2024-10-13 16:39:58,621 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 45 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2024-10-13 16:39:58,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 445 flow [2024-10-13 16:39:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:39:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:39:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-10-13 16:39:58,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-10-13 16:39:58,622 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 310 flow. Second operand 6 states and 110 transitions. [2024-10-13 16:39:58,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 445 flow [2024-10-13 16:39:58,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 427 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-13 16:39:58,627 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 282 flow [2024-10-13 16:39:58,629 INFO L260 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} [2024-10-13 16:39:58,629 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2024-10-13 16:39:58,630 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 282 flow [2024-10-13 16:39:58,630 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) [2024-10-13 16:39:58,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:58,630 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:58,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:39:58,831 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 [2024-10-13 16:39:58,831 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)] === [2024-10-13 16:39:58,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1734733546, now seen corresponding path program 1 times [2024-10-13 16:39:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:58,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266279380] [2024-10-13 16:39:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:58,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:58,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:58,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266279380] [2024-10-13 16:39:58,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266279380] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547460699] [2024-10-13 16:39:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:58,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:58,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:58,915 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) [2024-10-13 16:39:58,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:39:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:58,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:39:58,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:59,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:59,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547460699] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:59,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:59,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 16:39:59,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184114794] [2024-10-13 16:39:59,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:59,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 16:39:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:59,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 16:39:59,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 16:39:59,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:39:59,156 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) [2024-10-13 16:39:59,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:59,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:39:59,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:59,680 INFO L124 PetriNetUnfolderBase]: 646/1929 cut-off events. [2024-10-13 16:39:59,680 INFO L125 PetriNetUnfolderBase]: For 3104/3242 co-relation queries the response was YES. [2024-10-13 16:39:59,685 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. [2024-10-13 16:39:59,694 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 166 selfloop transitions, 28 changer transitions 0/205 dead transitions. [2024-10-13 16:39:59,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 205 transitions, 1384 flow [2024-10-13 16:39:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 16:39:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-13 16:39:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 364 transitions. [2024-10-13 16:39:59,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-10-13 16:39:59,696 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 282 flow. Second operand 16 states and 364 transitions. [2024-10-13 16:39:59,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 205 transitions, 1384 flow [2024-10-13 16:39:59,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 205 transitions, 1369 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:39:59,705 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 576 flow [2024-10-13 16:39:59,705 INFO L260 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} [2024-10-13 16:39:59,706 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2024-10-13 16:39:59,706 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 576 flow [2024-10-13 16:39:59,706 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) [2024-10-13 16:39:59,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:59,706 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:59,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:39:59,910 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 [2024-10-13 16:39:59,911 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)] === [2024-10-13 16:39:59,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1894710753, now seen corresponding path program 1 times [2024-10-13 16:39:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395005700] [2024-10-13 16:39:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:59,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395005700] [2024-10-13 16:39:59,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395005700] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043872216] [2024-10-13 16:39:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:59,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:59,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:59,999 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) [2024-10-13 16:40:00,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:40:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:00,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:40:00,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:00,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:40:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043872216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:00,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:40:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-13 16:40:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688007118] [2024-10-13 16:40:00,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:00,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:40:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:40:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:40:00,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-13 16:40:00,131 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) [2024-10-13 16:40:00,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:00,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-13 16:40:00,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:00,436 INFO L124 PetriNetUnfolderBase]: 663/1900 cut-off events. [2024-10-13 16:40:00,437 INFO L125 PetriNetUnfolderBase]: For 3568/3686 co-relation queries the response was YES. [2024-10-13 16:40:00,442 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. [2024-10-13 16:40:00,450 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 120 selfloop transitions, 5 changer transitions 0/140 dead transitions. [2024-10-13 16:40:00,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 140 transitions, 1276 flow [2024-10-13 16:40:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:40:00,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:40:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-10-13 16:40:00,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2024-10-13 16:40:00,452 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 576 flow. Second operand 6 states and 137 transitions. [2024-10-13 16:40:00,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 140 transitions, 1276 flow [2024-10-13 16:40:00,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 140 transitions, 1078 flow, removed 84 selfloop flow, removed 6 redundant places. [2024-10-13 16:40:00,466 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 478 flow [2024-10-13 16:40:00,466 INFO L260 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} [2024-10-13 16:40:00,467 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-10-13 16:40:00,467 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 478 flow [2024-10-13 16:40:00,468 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) [2024-10-13 16:40:00,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:00,468 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:00,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 16:40:00,668 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 [2024-10-13 16:40:00,669 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)] === [2024-10-13 16:40:00,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash 637345145, now seen corresponding path program 1 times [2024-10-13 16:40:00,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:00,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068333199] [2024-10-13 16:40:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:00,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:00,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068333199] [2024-10-13 16:40:00,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068333199] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:00,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992250024] [2024-10-13 16:40:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:00,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:00,740 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) [2024-10-13 16:40:00,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:40:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:00,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:40:00,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:00,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:40:00,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992250024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:40:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-13 16:40:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768159924] [2024-10-13 16:40:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:00,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:40:00,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:00,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:40:00,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:40:00,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-13 16:40:00,869 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) [2024-10-13 16:40:00,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:00,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-13 16:40:00,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:01,174 INFO L124 PetriNetUnfolderBase]: 675/1975 cut-off events. [2024-10-13 16:40:01,174 INFO L125 PetriNetUnfolderBase]: For 3492/3532 co-relation queries the response was YES. [2024-10-13 16:40:01,179 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. [2024-10-13 16:40:01,187 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 138 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-10-13 16:40:01,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 157 transitions, 1317 flow [2024-10-13 16:40:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:40:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:40:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2024-10-13 16:40:01,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-13 16:40:01,188 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 478 flow. Second operand 6 states and 140 transitions. [2024-10-13 16:40:01,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 157 transitions, 1317 flow [2024-10-13 16:40:01,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 157 transitions, 1292 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:40:01,198 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 479 flow [2024-10-13 16:40:01,198 INFO L260 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} [2024-10-13 16:40:01,199 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2024-10-13 16:40:01,199 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 479 flow [2024-10-13 16:40:01,200 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) [2024-10-13 16:40:01,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:01,200 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:40:01,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 16:40:01,400 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 [2024-10-13 16:40:01,401 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)] === [2024-10-13 16:40:01,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:01,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1717136704, now seen corresponding path program 1 times [2024-10-13 16:40:01,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:01,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675973745] [2024-10-13 16:40:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:01,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:40:01,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:01,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675973745] [2024-10-13 16:40:01,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675973745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:01,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:01,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:40:01,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139337393] [2024-10-13 16:40:01,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:01,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:40:01,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:01,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:40:01,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:40:01,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-13 16:40:01,454 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) [2024-10-13 16:40:01,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:01,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-13 16:40:01,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:01,715 INFO L124 PetriNetUnfolderBase]: 739/2092 cut-off events. [2024-10-13 16:40:01,715 INFO L125 PetriNetUnfolderBase]: For 3992/4002 co-relation queries the response was YES. [2024-10-13 16:40:01,720 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. [2024-10-13 16:40:01,729 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 112 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-10-13 16:40:01,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 131 transitions, 1134 flow [2024-10-13 16:40:01,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:40:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:40:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-10-13 16:40:01,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-10-13 16:40:01,730 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 479 flow. Second operand 4 states and 88 transitions. [2024-10-13 16:40:01,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 131 transitions, 1134 flow [2024-10-13 16:40:01,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 131 transitions, 1125 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 16:40:01,740 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 486 flow [2024-10-13 16:40:01,740 INFO L260 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} [2024-10-13 16:40:01,740 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-10-13 16:40:01,740 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 486 flow [2024-10-13 16:40:01,741 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) [2024-10-13 16:40:01,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:01,741 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:40:01,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:40:01,741 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)] === [2024-10-13 16:40:01,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1393508487, now seen corresponding path program 1 times [2024-10-13 16:40:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152790358] [2024-10-13 16:40:01,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:01,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:40:01,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:01,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152790358] [2024-10-13 16:40:01,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152790358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:01,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:40:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829302987] [2024-10-13 16:40:01,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:01,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:40:01,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:01,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:40:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:40:01,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-13 16:40:01,783 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) [2024-10-13 16:40:01,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:01,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-13 16:40:01,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:02,001 INFO L124 PetriNetUnfolderBase]: 730/1975 cut-off events. [2024-10-13 16:40:02,001 INFO L125 PetriNetUnfolderBase]: For 4169/4192 co-relation queries the response was YES. [2024-10-13 16:40:02,006 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. [2024-10-13 16:40:02,014 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 92 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-10-13 16:40:02,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 923 flow [2024-10-13 16:40:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:40:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:40:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-10-13 16:40:02,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-10-13 16:40:02,015 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 486 flow. Second operand 4 states and 86 transitions. [2024-10-13 16:40:02,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 923 flow [2024-10-13 16:40:02,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 111 transitions, 897 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-13 16:40:02,025 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 490 flow [2024-10-13 16:40:02,025 INFO L260 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} [2024-10-13 16:40:02,026 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-10-13 16:40:02,026 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 490 flow [2024-10-13 16:40:02,026 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) [2024-10-13 16:40:02,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:02,026 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:02,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 16:40:02,026 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)] === [2024-10-13 16:40:02,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:02,027 INFO L85 PathProgramCache]: Analyzing trace with hash -123948766, now seen corresponding path program 1 times [2024-10-13 16:40:02,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:02,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766122659] [2024-10-13 16:40:02,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:02,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:02,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:02,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766122659] [2024-10-13 16:40:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766122659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565555123] [2024-10-13 16:40:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:02,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:02,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:02,272 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) [2024-10-13 16:40:02,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:40:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:02,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 16:40:02,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:02,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:02,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565555123] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:02,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:02,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-10-13 16:40:02,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372380677] [2024-10-13 16:40:02,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:02,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 16:40:02,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 16:40:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-10-13 16:40:02,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:40:02,680 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) [2024-10-13 16:40:02,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:02,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:40:02,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:04,997 INFO L124 PetriNetUnfolderBase]: 3176/8723 cut-off events. [2024-10-13 16:40:04,997 INFO L125 PetriNetUnfolderBase]: For 31435/31435 co-relation queries the response was YES. [2024-10-13 16:40:05,018 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. [2024-10-13 16:40:05,053 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 653 selfloop transitions, 116 changer transitions 0/778 dead transitions. [2024-10-13 16:40:05,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 778 transitions, 6020 flow [2024-10-13 16:40:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-10-13 16:40:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-10-13 16:40:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 1395 transitions. [2024-10-13 16:40:05,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755447941888619 [2024-10-13 16:40:05,057 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 490 flow. Second operand 59 states and 1395 transitions. [2024-10-13 16:40:05,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 778 transitions, 6020 flow [2024-10-13 16:40:05,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 778 transitions, 5750 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:40:05,105 INFO L231 Difference]: Finished difference. Result has 178 places, 170 transitions, 1788 flow [2024-10-13 16:40:05,105 INFO L260 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} [2024-10-13 16:40:05,106 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 144 predicate places. [2024-10-13 16:40:05,106 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 170 transitions, 1788 flow [2024-10-13 16:40:05,106 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) [2024-10-13 16:40:05,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:05,106 INFO L204 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] [2024-10-13 16:40:05,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 16:40:05,310 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 [2024-10-13 16:40:05,311 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)] === [2024-10-13 16:40:05,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash 124617666, now seen corresponding path program 1 times [2024-10-13 16:40:05,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:05,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671660438] [2024-10-13 16:40:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:05,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:05,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671660438] [2024-10-13 16:40:05,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671660438] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:05,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202124714] [2024-10-13 16:40:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:05,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:05,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:05,624 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) [2024-10-13 16:40:05,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:40:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:05,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 16:40:05,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:05,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:06,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202124714] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:06,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:06,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-10-13 16:40:06,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304493899] [2024-10-13 16:40:06,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:06,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 16:40:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 16:40:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=376, Unknown=0, NotChecked=0, Total=600 [2024-10-13 16:40:06,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:40:06,144 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) [2024-10-13 16:40:06,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:06,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:40:06,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:11,614 INFO L124 PetriNetUnfolderBase]: 8338/23336 cut-off events. [2024-10-13 16:40:11,614 INFO L125 PetriNetUnfolderBase]: For 414632/414632 co-relation queries the response was YES. [2024-10-13 16:40:11,920 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. [2024-10-13 16:40:12,011 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 625 selfloop transitions, 382 changer transitions 0/1016 dead transitions. [2024-10-13 16:40:12,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 1016 transitions, 10163 flow [2024-10-13 16:40:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-13 16:40:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2024-10-13 16:40:12,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 1222 transitions. [2024-10-13 16:40:12,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6465608465608466 [2024-10-13 16:40:12,015 INFO L175 Difference]: Start difference. First operand has 178 places, 170 transitions, 1788 flow. Second operand 54 states and 1222 transitions. [2024-10-13 16:40:12,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 1016 transitions, 10163 flow [2024-10-13 16:40:12,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 1016 transitions, 8307 flow, removed 831 selfloop flow, removed 15 redundant places. [2024-10-13 16:40:12,505 INFO L231 Difference]: Finished difference. Result has 249 places, 504 transitions, 5185 flow [2024-10-13 16:40:12,505 INFO L260 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} [2024-10-13 16:40:12,506 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 215 predicate places. [2024-10-13 16:40:12,506 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 504 transitions, 5185 flow [2024-10-13 16:40:12,506 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) [2024-10-13 16:40:12,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:12,506 INFO L204 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] [2024-10-13 16:40:12,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 16:40:12,709 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 [2024-10-13 16:40:12,709 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)] === [2024-10-13 16:40:12,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1461579277, now seen corresponding path program 2 times [2024-10-13 16:40:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:12,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449098926] [2024-10-13 16:40:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:12,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:13,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449098926] [2024-10-13 16:40:13,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449098926] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:13,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022960841] [2024-10-13 16:40:13,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:40:13,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:13,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:13,047 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) [2024-10-13 16:40:13,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 16:40:13,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 16:40:13,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:40:13,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 16:40:13,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:13,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:13,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022960841] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:13,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:13,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2024-10-13 16:40:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146070546] [2024-10-13 16:40:13,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:13,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 16:40:13,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:13,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 16:40:13,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2024-10-13 16:40:13,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:40:13,730 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) [2024-10-13 16:40:13,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:13,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:40:13,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:29,850 INFO L124 PetriNetUnfolderBase]: 19503/54075 cut-off events. [2024-10-13 16:40:29,850 INFO L125 PetriNetUnfolderBase]: For 2110005/2110005 co-relation queries the response was YES. [2024-10-13 16:40:30,839 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. [2024-10-13 16:40:31,080 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 1264 selfloop transitions, 1084 changer transitions 0/2357 dead transitions. [2024-10-13 16:40:31,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 2357 transitions, 23831 flow [2024-10-13 16:40:31,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-10-13 16:40:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2024-10-13 16:40:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 2615 transitions. [2024-10-13 16:40:31,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6670918367346939 [2024-10-13 16:40:31,093 INFO L175 Difference]: Start difference. First operand has 249 places, 504 transitions, 5185 flow. Second operand 112 states and 2615 transitions. [2024-10-13 16:40:31,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 2357 transitions, 23831 flow [2024-10-13 16:40:33,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 2357 transitions, 23166 flow, removed 317 selfloop flow, removed 11 redundant places. [2024-10-13 16:40:33,633 INFO L231 Difference]: Finished difference. Result has 404 places, 1189 transitions, 15400 flow [2024-10-13 16:40:33,634 INFO L260 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} [2024-10-13 16:40:33,634 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 370 predicate places. [2024-10-13 16:40:33,634 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1189 transitions, 15400 flow [2024-10-13 16:40:33,635 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) [2024-10-13 16:40:33,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:33,635 INFO L204 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] [2024-10-13 16:40:33,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 16:40:33,838 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 [2024-10-13 16:40:33,838 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)] === [2024-10-13 16:40:33,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1457796694, now seen corresponding path program 1 times [2024-10-13 16:40:33,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:33,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907531411] [2024-10-13 16:40:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:33,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907531411] [2024-10-13 16:40:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907531411] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:34,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318594460] [2024-10-13 16:40:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:34,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:34,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:34,430 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) [2024-10-13 16:40:34,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 16:40:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:34,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 16:40:34,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:34,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318594460] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:35,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:35,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 40 [2024-10-13 16:40:35,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276823890] [2024-10-13 16:40:35,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:35,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-13 16:40:35,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-13 16:40:35,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2024-10-13 16:40:35,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-13 16:40:35,173 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) [2024-10-13 16:40:35,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:35,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-13 16:40:35,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand