./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../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-assert-order-craig-803cd42-m [2024-11-23 01:48:50,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:48:50,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:48:50,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:48:50,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:48:50,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:48:50,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:48:50,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:48:50,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:48:50,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:48:50,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:48:50,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:48:50,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:48:50,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:48:50,617 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:48:50,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:48:50,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:48:50,619 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:48:50,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:48:50,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:48:50,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:48:50,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:48:50,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:48:50,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:48:50,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:48:50,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:48:50,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:48:50,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:48:50,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:48:50,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:48:50,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:48:50,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:48:50,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:48:50,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:48:50,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:48:50,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:48:50,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:48:50,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:48:50,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:48:50,631 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2024-11-23 01:48:50,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:48:50,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:48:50,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:48:50,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:48:50,893 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:48:50,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-23 01:48:52,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:48:52,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:48:52,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-23 01:48:52,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae890112/c927d39e28c24b31a549ebb77cd100ee/FLAG37ecdc1a8 [2024-11-23 01:48:52,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae890112/c927d39e28c24b31a549ebb77cd100ee [2024-11-23 01:48:52,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:48:53,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:48:53,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:48:53,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:48:53,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:48:53,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:52" (1/1) ... [2024-11-23 01:48:53,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42992954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53, skipping insertion in model container [2024-11-23 01:48:53,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:52" (1/1) ... [2024-11-23 01:48:53,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:48:53,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:48:53,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:48:53,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:48:53,681 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:48:53,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53 WrapperNode [2024-11-23 01:48:53,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:48:53,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:48:53,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:48:53,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:48:53,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,730 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-23 01:48:53,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:48:53,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:48:53,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:48:53,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:48:53,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,752 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-23 01:48:53,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:48:53,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:48:53,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:48:53,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:48:53,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (1/1) ... [2024-11-23 01:48:53,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:48:53,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:48:53,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 01:48:53,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 01:48:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 01:48:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 01:48:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:48:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-11-23 01:48:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-11-23 01:48:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:48:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:48:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:48:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:48:53,830 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:48:53,949 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:48:53,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:48:54,087 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:48:54,088 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:48:54,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:48:54,178 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 01:48:54,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:54 BoogieIcfgContainer [2024-11-23 01:48:54,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:48:54,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:48:54,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:48:54,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:48:54,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:48:52" (1/3) ... [2024-11-23 01:48:54,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b876990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:54, skipping insertion in model container [2024-11-23 01:48:54,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:53" (2/3) ... [2024-11-23 01:48:54,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b876990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:54, skipping insertion in model container [2024-11-23 01:48:54,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:54" (3/3) ... [2024-11-23 01:48:54,187 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-11-23 01:48:54,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:48:54,199 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-23 01:48:54,199 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:48:54,235 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 01:48:54,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 77 flow [2024-11-23 01:48:54,285 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-23 01:48:54,285 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 01:48:54,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 34 events. 2/34 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-23 01:48:54,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 77 flow [2024-11-23 01:48:54,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 32 transitions, 67 flow [2024-11-23 01:48:54,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:48:54,312 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;@22b2feae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:48:54,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-23 01:48:54,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:48:54,318 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-23 01:48:54,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:48:54,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:54,323 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:54,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:54,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:54,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1980317922, now seen corresponding path program 1 times [2024-11-23 01:48:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:54,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433004059] [2024-11-23 01:48:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:54,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:54,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433004059] [2024-11-23 01:48:54,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433004059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:54,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:54,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 01:48:54,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462792855] [2024-11-23 01:48:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:54,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:48:54,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:54,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:48:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:48:54,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-23 01:48:54,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:54,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:54,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-23 01:48:54,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:54,663 INFO L124 PetriNetUnfolderBase]: 92/257 cut-off events. [2024-11-23 01:48:54,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:48:54,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 257 events. 92/257 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1173 event pairs, 22 based on Foata normal form. 4/232 useless extension candidates. Maximal degree in co-relation 437. Up to 152 conditions per place. [2024-11-23 01:48:54,668 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-11-23 01:48:54,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 141 flow [2024-11-23 01:48:54,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:48:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:48:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-23 01:48:54,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-23 01:48:54,681 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 67 flow. Second operand 3 states and 72 transitions. [2024-11-23 01:48:54,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 141 flow [2024-11-23 01:48:54,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:48:54,686 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 87 flow [2024-11-23 01:48:54,687 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} [2024-11-23 01:48:54,691 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2024-11-23 01:48:54,692 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 87 flow [2024-11-23 01:48:54,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:54,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:54,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:54,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:48:54,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:54,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1956177667, now seen corresponding path program 1 times [2024-11-23 01:48:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:54,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199808974] [2024-11-23 01:48:54,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:54,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:54,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:54,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199808974] [2024-11-23 01:48:54,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199808974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:54,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:48:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126571461] [2024-11-23 01:48:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:54,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:48:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:54,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:48:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:48:54,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:54,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:54,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:54,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:54,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:54,999 INFO L124 PetriNetUnfolderBase]: 118/307 cut-off events. [2024-11-23 01:48:54,999 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-23 01:48:55,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 307 events. 118/307 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1448 event pairs, 40 based on Foata normal form. 24/303 useless extension candidates. Maximal degree in co-relation 607. Up to 195 conditions per place. [2024-11-23 01:48:55,002 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 37 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-11-23 01:48:55,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 224 flow [2024-11-23 01:48:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:48:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:48:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-23 01:48:55,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-23 01:48:55,004 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 87 flow. Second operand 5 states and 107 transitions. [2024-11-23 01:48:55,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 224 flow [2024-11-23 01:48:55,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:48:55,005 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 126 flow [2024-11-23 01:48:55,005 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} [2024-11-23 01:48:55,006 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2024-11-23 01:48:55,006 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 126 flow [2024-11-23 01:48:55,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:55,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:55,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 01:48:55,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:55,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash 615279125, now seen corresponding path program 1 times [2024-11-23 01:48:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:55,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092331170] [2024-11-23 01:48:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:55,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:55,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092331170] [2024-11-23 01:48:55,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092331170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:55,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:55,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:55,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143342227] [2024-11-23 01:48:55,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:55,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:48:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:48:55,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:48:55,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-23 01:48:55,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:55,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-23 01:48:55,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:55,220 INFO L124 PetriNetUnfolderBase]: 142/394 cut-off events. [2024-11-23 01:48:55,221 INFO L125 PetriNetUnfolderBase]: For 194/219 co-relation queries the response was YES. [2024-11-23 01:48:55,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 394 events. 142/394 cut-off events. For 194/219 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1889 event pairs, 42 based on Foata normal form. 21/396 useless extension candidates. Maximal degree in co-relation 843. Up to 172 conditions per place. [2024-11-23 01:48:55,228 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 46 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-23 01:48:55,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 307 flow [2024-11-23 01:48:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:48:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:48:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-11-23 01:48:55,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-11-23 01:48:55,229 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 126 flow. Second operand 4 states and 99 transitions. [2024-11-23 01:48:55,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 307 flow [2024-11-23 01:48:55,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:48:55,235 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 142 flow [2024-11-23 01:48:55,235 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} [2024-11-23 01:48:55,236 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2024-11-23 01:48:55,236 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 142 flow [2024-11-23 01:48:55,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:55,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:55,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:48:55,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:55,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash -526843008, now seen corresponding path program 1 times [2024-11-23 01:48:55,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527866796] [2024-11-23 01:48:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:55,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:55,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:55,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527866796] [2024-11-23 01:48:55,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527866796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:55,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:55,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:55,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219806796] [2024-11-23 01:48:55,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:55,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:48:55,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:55,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:48:55,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:48:55,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-23 01:48:55,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:55,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-23 01:48:55,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:55,415 INFO L124 PetriNetUnfolderBase]: 212/602 cut-off events. [2024-11-23 01:48:55,416 INFO L125 PetriNetUnfolderBase]: For 346/374 co-relation queries the response was YES. [2024-11-23 01:48:55,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 602 events. 212/602 cut-off events. For 346/374 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3212 event pairs, 97 based on Foata normal form. 24/603 useless extension candidates. Maximal degree in co-relation 1422. Up to 257 conditions per place. [2024-11-23 01:48:55,420 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-11-23 01:48:55,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 339 flow [2024-11-23 01:48:55,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:48:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:48:55,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-23 01:48:55,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-23 01:48:55,421 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 142 flow. Second operand 4 states and 98 transitions. [2024-11-23 01:48:55,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 339 flow [2024-11-23 01:48:55,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:48:55,424 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 164 flow [2024-11-23 01:48:55,425 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} [2024-11-23 01:48:55,425 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2024-11-23 01:48:55,425 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 164 flow [2024-11-23 01:48:55,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:55,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:55,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 01:48:55,426 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:55,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1187644930, now seen corresponding path program 1 times [2024-11-23 01:48:55,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:55,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944586353] [2024-11-23 01:48:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:55,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:55,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:55,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944586353] [2024-11-23 01:48:55,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944586353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:55,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6567031] [2024-11-23 01:48:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:55,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:48:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:48:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:48:55,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-23 01:48:55,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:55,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-23 01:48:55,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:55,564 INFO L124 PetriNetUnfolderBase]: 125/441 cut-off events. [2024-11-23 01:48:55,564 INFO L125 PetriNetUnfolderBase]: For 293/309 co-relation queries the response was YES. [2024-11-23 01:48:55,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 441 events. 125/441 cut-off events. For 293/309 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2146 event pairs, 43 based on Foata normal form. 20/459 useless extension candidates. Maximal degree in co-relation 1083. Up to 140 conditions per place. [2024-11-23 01:48:55,568 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 32 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-23 01:48:55,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 277 flow [2024-11-23 01:48:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:48:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:48:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-23 01:48:55,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-23 01:48:55,572 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 164 flow. Second operand 3 states and 75 transitions. [2024-11-23 01:48:55,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 277 flow [2024-11-23 01:48:55,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 267 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-23 01:48:55,576 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 151 flow [2024-11-23 01:48:55,576 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} [2024-11-23 01:48:55,577 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2024-11-23 01:48:55,578 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 151 flow [2024-11-23 01:48:55,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:55,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:55,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:48:55,579 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:55,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash -391971327, now seen corresponding path program 1 times [2024-11-23 01:48:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863128187] [2024-11-23 01:48:55,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:55,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:55,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:55,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863128187] [2024-11-23 01:48:55,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863128187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:55,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:55,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:55,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765531108] [2024-11-23 01:48:55,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:55,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:48:55,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:48:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:48:55,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:55,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:55,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:55,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:55,781 INFO L124 PetriNetUnfolderBase]: 232/655 cut-off events. [2024-11-23 01:48:55,782 INFO L125 PetriNetUnfolderBase]: For 455/491 co-relation queries the response was YES. [2024-11-23 01:48:55,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 655 events. 232/655 cut-off events. For 455/491 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3518 event pairs, 92 based on Foata normal form. 10/640 useless extension candidates. Maximal degree in co-relation 1750. Up to 249 conditions per place. [2024-11-23 01:48:55,785 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-11-23 01:48:55,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 65 transitions, 367 flow [2024-11-23 01:48:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:48:55,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:48:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-23 01:48:55,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-23 01:48:55,787 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 151 flow. Second operand 5 states and 107 transitions. [2024-11-23 01:48:55,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 65 transitions, 367 flow [2024-11-23 01:48:55,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 65 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:48:55,789 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 180 flow [2024-11-23 01:48:55,789 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} [2024-11-23 01:48:55,790 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2024-11-23 01:48:55,790 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 180 flow [2024-11-23 01:48:55,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:55,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:55,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:48:55,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:55,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash -298802143, now seen corresponding path program 1 times [2024-11-23 01:48:55,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:55,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229042171] [2024-11-23 01:48:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:55,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:55,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:55,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229042171] [2024-11-23 01:48:55,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229042171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:55,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:55,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355103743] [2024-11-23 01:48:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:55,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:48:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:48:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:48:55,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:55,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:55,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:55,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:55,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:56,057 INFO L124 PetriNetUnfolderBase]: 278/830 cut-off events. [2024-11-23 01:48:56,061 INFO L125 PetriNetUnfolderBase]: For 796/827 co-relation queries the response was YES. [2024-11-23 01:48:56,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2225 conditions, 830 events. 278/830 cut-off events. For 796/827 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4752 event pairs, 120 based on Foata normal form. 18/837 useless extension candidates. Maximal degree in co-relation 2204. Up to 302 conditions per place. [2024-11-23 01:48:56,065 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 69 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2024-11-23 01:48:56,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 87 transitions, 529 flow [2024-11-23 01:48:56,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:48:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:48:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-23 01:48:56,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-23 01:48:56,070 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 180 flow. Second operand 6 states and 133 transitions. [2024-11-23 01:48:56,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 87 transitions, 529 flow [2024-11-23 01:48:56,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:48:56,073 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 233 flow [2024-11-23 01:48:56,073 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} [2024-11-23 01:48:56,077 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2024-11-23 01:48:56,078 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 233 flow [2024-11-23 01:48:56,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:56,078 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:56,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:48:56,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:56,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1077199397, now seen corresponding path program 1 times [2024-11-23 01:48:56,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:56,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901784084] [2024-11-23 01:48:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:56,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:56,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901784084] [2024-11-23 01:48:56,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901784084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:56,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:56,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337716700] [2024-11-23 01:48:56,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:56,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:48:56,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:56,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:48:56,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:48:56,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:56,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:56,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:56,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:56,282 INFO L124 PetriNetUnfolderBase]: 282/802 cut-off events. [2024-11-23 01:48:56,282 INFO L125 PetriNetUnfolderBase]: For 1121/1192 co-relation queries the response was YES. [2024-11-23 01:48:56,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2328 conditions, 802 events. 282/802 cut-off events. For 1121/1192 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4410 event pairs, 119 based on Foata normal form. 5/805 useless extension candidates. Maximal degree in co-relation 2303. Up to 514 conditions per place. [2024-11-23 01:48:56,287 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 53 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-11-23 01:48:56,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 472 flow [2024-11-23 01:48:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:48:56,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:48:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-23 01:48:56,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2024-11-23 01:48:56,289 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 233 flow. Second operand 5 states and 107 transitions. [2024-11-23 01:48:56,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 472 flow [2024-11-23 01:48:56,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 465 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 01:48:56,293 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 267 flow [2024-11-23 01:48:56,293 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} [2024-11-23 01:48:56,294 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2024-11-23 01:48:56,295 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 267 flow [2024-11-23 01:48:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:56,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:56,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 01:48:56,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:56,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash -672931533, now seen corresponding path program 1 times [2024-11-23 01:48:56,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:56,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855389159] [2024-11-23 01:48:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:56,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:56,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:56,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855389159] [2024-11-23 01:48:56,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855389159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:56,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:56,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:56,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420785435] [2024-11-23 01:48:56,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:56,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:48:56,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:56,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:48:56,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:48:56,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:56,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:56,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:56,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:56,505 INFO L124 PetriNetUnfolderBase]: 279/872 cut-off events. [2024-11-23 01:48:56,505 INFO L125 PetriNetUnfolderBase]: For 1313/1320 co-relation queries the response was YES. [2024-11-23 01:48:56,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 872 events. 279/872 cut-off events. For 1313/1320 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5304 event pairs, 139 based on Foata normal form. 4/866 useless extension candidates. Maximal degree in co-relation 2478. Up to 520 conditions per place. [2024-11-23 01:48:56,510 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 54 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-11-23 01:48:56,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 514 flow [2024-11-23 01:48:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:48:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:48:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-11-23 01:48:56,511 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5469387755102041 [2024-11-23 01:48:56,512 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 267 flow. Second operand 7 states and 134 transitions. [2024-11-23 01:48:56,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 514 flow [2024-11-23 01:48:56,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 74 transitions, 501 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-23 01:48:56,516 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 310 flow [2024-11-23 01:48:56,516 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} [2024-11-23 01:48:56,517 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2024-11-23 01:48:56,517 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 310 flow [2024-11-23 01:48:56,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:56,518 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 01:48:56,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1579979810, now seen corresponding path program 1 times [2024-11-23 01:48:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:56,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451935079] [2024-11-23 01:48:56,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:56,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:56,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:56,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451935079] [2024-11-23 01:48:56,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451935079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:48:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194849305] [2024-11-23 01:48:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:56,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:56,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:48:56,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:48:56,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 01:48:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:56,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 01:48:56,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:48:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:56,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:48:56,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194849305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:56,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:48:56,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 01:48:56,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356562984] [2024-11-23 01:48:56,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:56,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:48:56,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:48:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:48:56,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:56,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:56,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:56,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:56,850 INFO L124 PetriNetUnfolderBase]: 261/800 cut-off events. [2024-11-23 01:48:56,851 INFO L125 PetriNetUnfolderBase]: For 1483/1509 co-relation queries the response was YES. [2024-11-23 01:48:56,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 800 events. 261/800 cut-off events. For 1483/1509 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4635 event pairs, 118 based on Foata normal form. 24/814 useless extension candidates. Maximal degree in co-relation 2294. Up to 496 conditions per place. [2024-11-23 01:48:56,854 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 45 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2024-11-23 01:48:56,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 445 flow [2024-11-23 01:48:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:48:56,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:48:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-11-23 01:48:56,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-23 01:48:56,855 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 310 flow. Second operand 6 states and 110 transitions. [2024-11-23 01:48:56,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 445 flow [2024-11-23 01:48:56,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 427 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-23 01:48:56,858 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 282 flow [2024-11-23 01:48:56,858 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} [2024-11-23 01:48:56,859 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2024-11-23 01:48:56,859 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 282 flow [2024-11-23 01:48:56,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:56,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:56,859 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:56,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 01:48:57,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 01:48:57,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:57,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:57,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1734733546, now seen corresponding path program 1 times [2024-11-23 01:48:57,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:57,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935937571] [2024-11-23 01:48:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:57,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:57,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:57,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935937571] [2024-11-23 01:48:57,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935937571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:48:57,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039211026] [2024-11-23 01:48:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:57,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:48:57,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:48:57,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 01:48:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:57,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 01:48:57,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:48:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:57,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:48:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:57,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039211026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:48:57,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:48:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-23 01:48:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510106992] [2024-11-23 01:48:57,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:48:57,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 01:48:57,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:57,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 01:48:57,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:48:57,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:48:57,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 282 flow. Second operand has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:57,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:57,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:48:57,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:57,665 INFO L124 PetriNetUnfolderBase]: 646/1929 cut-off events. [2024-11-23 01:48:57,666 INFO L125 PetriNetUnfolderBase]: For 3104/3242 co-relation queries the response was YES. [2024-11-23 01:48:57,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5345 conditions, 1929 events. 646/1929 cut-off events. For 3104/3242 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 14161 event pairs, 102 based on Foata normal form. 73/1989 useless extension candidates. Maximal degree in co-relation 5317. Up to 415 conditions per place. [2024-11-23 01:48:57,675 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 166 selfloop transitions, 28 changer transitions 0/205 dead transitions. [2024-11-23 01:48:57,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 205 transitions, 1384 flow [2024-11-23 01:48:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 01:48:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 01:48:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 364 transitions. [2024-11-23 01:48:57,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-23 01:48:57,677 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 282 flow. Second operand 16 states and 364 transitions. [2024-11-23 01:48:57,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 205 transitions, 1384 flow [2024-11-23 01:48:57,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 205 transitions, 1369 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 01:48:57,683 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 576 flow [2024-11-23 01:48:57,683 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} [2024-11-23 01:48:57,683 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2024-11-23 01:48:57,684 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 576 flow [2024-11-23 01:48:57,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:57,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:57,684 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:57,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 01:48:57,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 01:48:57,888 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:57,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:57,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1894710753, now seen corresponding path program 1 times [2024-11-23 01:48:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:57,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489270693] [2024-11-23 01:48:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:57,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:57,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:57,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489270693] [2024-11-23 01:48:57,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489270693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:48:57,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672767769] [2024-11-23 01:48:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:57,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:57,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:48:57,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:48:57,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 01:48:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:58,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:48:58,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:48:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:58,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:48:58,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672767769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:58,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:48:58,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 01:48:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827221396] [2024-11-23 01:48:58,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:58,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:48:58,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:48:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:48:58,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-23 01:48:58,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:58,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:58,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-23 01:48:58,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:58,362 INFO L124 PetriNetUnfolderBase]: 663/1900 cut-off events. [2024-11-23 01:48:58,363 INFO L125 PetriNetUnfolderBase]: For 3568/3686 co-relation queries the response was YES. [2024-11-23 01:48:58,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5691 conditions, 1900 events. 663/1900 cut-off events. For 3568/3686 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13926 event pairs, 60 based on Foata normal form. 63/1900 useless extension candidates. Maximal degree in co-relation 5655. Up to 813 conditions per place. [2024-11-23 01:48:58,372 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 120 selfloop transitions, 5 changer transitions 0/140 dead transitions. [2024-11-23 01:48:58,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 140 transitions, 1276 flow [2024-11-23 01:48:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:48:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:48:58,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-23 01:48:58,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2024-11-23 01:48:58,374 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 576 flow. Second operand 6 states and 137 transitions. [2024-11-23 01:48:58,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 140 transitions, 1276 flow [2024-11-23 01:48:58,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 140 transitions, 1078 flow, removed 84 selfloop flow, removed 6 redundant places. [2024-11-23 01:48:58,384 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 478 flow [2024-11-23 01:48:58,384 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} [2024-11-23 01:48:58,384 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-23 01:48:58,385 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 478 flow [2024-11-23 01:48:58,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:58,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:58,385 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:58,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 01:48:58,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:58,586 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:58,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash 637345145, now seen corresponding path program 1 times [2024-11-23 01:48:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:58,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054609120] [2024-11-23 01:48:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:58,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054609120] [2024-11-23 01:48:58,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054609120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:48:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909039916] [2024-11-23 01:48:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:58,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:58,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:48:58,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:48:58,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 01:48:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:58,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:48:58,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:48:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:48:58,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:48:58,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909039916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:58,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:48:58,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 01:48:58,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180768995] [2024-11-23 01:48:58,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:58,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:48:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:48:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:48:58,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-23 01:48:58,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:58,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:58,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-23 01:48:58,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:59,094 INFO L124 PetriNetUnfolderBase]: 675/1975 cut-off events. [2024-11-23 01:48:59,094 INFO L125 PetriNetUnfolderBase]: For 3492/3532 co-relation queries the response was YES. [2024-11-23 01:48:59,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 1975 events. 675/1975 cut-off events. For 3492/3532 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 14660 event pairs, 145 based on Foata normal form. 75/1966 useless extension candidates. Maximal degree in co-relation 5799. Up to 798 conditions per place. [2024-11-23 01:48:59,110 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 138 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-23 01:48:59,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 157 transitions, 1317 flow [2024-11-23 01:48:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:48:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:48:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2024-11-23 01:48:59,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-23 01:48:59,111 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 478 flow. Second operand 6 states and 140 transitions. [2024-11-23 01:48:59,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 157 transitions, 1317 flow [2024-11-23 01:48:59,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 157 transitions, 1292 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:48:59,119 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 479 flow [2024-11-23 01:48:59,119 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} [2024-11-23 01:48:59,119 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2024-11-23 01:48:59,119 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 479 flow [2024-11-23 01:48:59,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:59,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:59,120 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 01:48:59,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 01:48:59,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:48:59,324 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:59,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1717136704, now seen corresponding path program 1 times [2024-11-23 01:48:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:59,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198433707] [2024-11-23 01:48:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 01:48:59,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:59,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198433707] [2024-11-23 01:48:59,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198433707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:59,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:59,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:59,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36802507] [2024-11-23 01:48:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:59,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:48:59,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:59,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:48:59,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:48:59,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-23 01:48:59,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:59,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:59,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-23 01:48:59,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:59,620 INFO L124 PetriNetUnfolderBase]: 739/2092 cut-off events. [2024-11-23 01:48:59,621 INFO L125 PetriNetUnfolderBase]: For 3992/4002 co-relation queries the response was YES. [2024-11-23 01:48:59,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6358 conditions, 2092 events. 739/2092 cut-off events. For 3992/4002 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15140 event pairs, 177 based on Foata normal form. 75/2160 useless extension candidates. Maximal degree in co-relation 6324. Up to 824 conditions per place. [2024-11-23 01:48:59,631 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 112 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-11-23 01:48:59,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 131 transitions, 1134 flow [2024-11-23 01:48:59,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:48:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:48:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-11-23 01:48:59,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-23 01:48:59,632 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 479 flow. Second operand 4 states and 88 transitions. [2024-11-23 01:48:59,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 131 transitions, 1134 flow [2024-11-23 01:48:59,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 131 transitions, 1125 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-23 01:48:59,642 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 486 flow [2024-11-23 01:48:59,643 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} [2024-11-23 01:48:59,643 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-23 01:48:59,643 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 486 flow [2024-11-23 01:48:59,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:59,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:59,643 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 01:48:59,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 01:48:59,644 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:59,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1393508487, now seen corresponding path program 1 times [2024-11-23 01:48:59,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:59,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744539564] [2024-11-23 01:48:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:59,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:48:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 01:48:59,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:48:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744539564] [2024-11-23 01:48:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744539564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:48:59,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:48:59,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:48:59,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042092410] [2024-11-23 01:48:59,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:48:59,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:48:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:48:59,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:48:59,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:48:59,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-23 01:48:59,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:59,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:48:59,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-23 01:48:59,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:48:59,883 INFO L124 PetriNetUnfolderBase]: 730/1975 cut-off events. [2024-11-23 01:48:59,884 INFO L125 PetriNetUnfolderBase]: For 4169/4192 co-relation queries the response was YES. [2024-11-23 01:48:59,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6311 conditions, 1975 events. 730/1975 cut-off events. For 4169/4192 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13870 event pairs, 180 based on Foata normal form. 63/2034 useless extension candidates. Maximal degree in co-relation 6278. Up to 859 conditions per place. [2024-11-23 01:48:59,895 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 92 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-11-23 01:48:59,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 923 flow [2024-11-23 01:48:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:48:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:48:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-23 01:48:59,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-23 01:48:59,898 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 486 flow. Second operand 4 states and 86 transitions. [2024-11-23 01:48:59,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 923 flow [2024-11-23 01:48:59,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 111 transitions, 897 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-23 01:48:59,905 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 490 flow [2024-11-23 01:48:59,906 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} [2024-11-23 01:48:59,906 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2024-11-23 01:48:59,906 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 490 flow [2024-11-23 01:48:59,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:48:59,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:48:59,906 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:48:59,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 01:48:59,907 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:48:59,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:48:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -123948766, now seen corresponding path program 1 times [2024-11-23 01:48:59,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:48:59,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271859699] [2024-11-23 01:48:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:48:59,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:48:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:00,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271859699] [2024-11-23 01:49:00,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271859699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:49:00,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130111798] [2024-11-23 01:49:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:00,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:49:00,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:49:00,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:49:00,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 01:49:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:00,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 01:49:00,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:49:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:00,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:49:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:00,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130111798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:49:00,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:49:00,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-23 01:49:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690762048] [2024-11-23 01:49:00,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:49:00,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 01:49:00,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:00,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 01:49:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-11-23 01:49:00,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:49:00,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 490 flow. Second operand has 22 states, 22 states have (on average 14.818181818181818) internal successors, (326), 22 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:00,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:00,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:49:00,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:02,136 INFO L124 PetriNetUnfolderBase]: 3176/8723 cut-off events. [2024-11-23 01:49:02,137 INFO L125 PetriNetUnfolderBase]: For 31435/31435 co-relation queries the response was YES. [2024-11-23 01:49:02,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28183 conditions, 8723 events. 3176/8723 cut-off events. For 31435/31435 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 70559 event pairs, 357 based on Foata normal form. 412/9109 useless extension candidates. Maximal degree in co-relation 28150. Up to 1325 conditions per place. [2024-11-23 01:49:02,245 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 653 selfloop transitions, 116 changer transitions 0/778 dead transitions. [2024-11-23 01:49:02,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 778 transitions, 6020 flow [2024-11-23 01:49:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-23 01:49:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-23 01:49:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 1395 transitions. [2024-11-23 01:49:02,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755447941888619 [2024-11-23 01:49:02,250 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 490 flow. Second operand 59 states and 1395 transitions. [2024-11-23 01:49:02,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 778 transitions, 6020 flow [2024-11-23 01:49:02,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 778 transitions, 5750 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:49:02,289 INFO L231 Difference]: Finished difference. Result has 178 places, 170 transitions, 1788 flow [2024-11-23 01:49:02,289 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} [2024-11-23 01:49:02,290 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 144 predicate places. [2024-11-23 01:49:02,290 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 170 transitions, 1788 flow [2024-11-23 01:49:02,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.818181818181818) internal successors, (326), 22 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:02,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:02,290 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] [2024-11-23 01:49:02,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 01:49:02,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 01:49:02,491 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:49:02,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:02,492 INFO L85 PathProgramCache]: Analyzing trace with hash 124617666, now seen corresponding path program 1 times [2024-11-23 01:49:02,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:02,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340310759] [2024-11-23 01:49:02,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:02,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:02,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340310759] [2024-11-23 01:49:02,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340310759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:49:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511023778] [2024-11-23 01:49:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:02,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:49:02,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:49:02,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:49:02,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 01:49:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:02,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 01:49:02,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:49:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:02,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:49:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:03,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511023778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:49:03,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:49:03,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-23 01:49:03,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300249784] [2024-11-23 01:49:03,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:49:03,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 01:49:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:03,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 01:49:03,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=376, Unknown=0, NotChecked=0, Total=600 [2024-11-23 01:49:03,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:49:03,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 170 transitions, 1788 flow. Second operand has 25 states, 25 states have (on average 15.92) internal successors, (398), 25 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:03,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:03,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:49:03,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:08,018 INFO L124 PetriNetUnfolderBase]: 8338/23336 cut-off events. [2024-11-23 01:49:08,019 INFO L125 PetriNetUnfolderBase]: For 414632/414632 co-relation queries the response was YES. [2024-11-23 01:49:08,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80348 conditions, 23336 events. 8338/23336 cut-off events. For 414632/414632 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 216100 event pairs, 1838 based on Foata normal form. 595/23884 useless extension candidates. Maximal degree in co-relation 80274. Up to 3588 conditions per place. [2024-11-23 01:49:08,308 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 625 selfloop transitions, 382 changer transitions 0/1016 dead transitions. [2024-11-23 01:49:08,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 1016 transitions, 10163 flow [2024-11-23 01:49:08,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-23 01:49:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2024-11-23 01:49:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 1222 transitions. [2024-11-23 01:49:08,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6465608465608466 [2024-11-23 01:49:08,321 INFO L175 Difference]: Start difference. First operand has 178 places, 170 transitions, 1788 flow. Second operand 54 states and 1222 transitions. [2024-11-23 01:49:08,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 1016 transitions, 10163 flow [2024-11-23 01:49:08,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 1016 transitions, 8307 flow, removed 831 selfloop flow, removed 15 redundant places. [2024-11-23 01:49:09,002 INFO L231 Difference]: Finished difference. Result has 249 places, 504 transitions, 5185 flow [2024-11-23 01:49:09,002 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} [2024-11-23 01:49:09,002 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 215 predicate places. [2024-11-23 01:49:09,002 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 504 transitions, 5185 flow [2024-11-23 01:49:09,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.92) internal successors, (398), 25 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:09,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:09,003 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] [2024-11-23 01:49:09,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 01:49:09,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 01:49:09,207 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:49:09,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:09,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1461579277, now seen corresponding path program 2 times [2024-11-23 01:49:09,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:09,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473289376] [2024-11-23 01:49:09,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:49:09,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:09,258 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:49:09,258 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:49:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:09,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:09,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473289376] [2024-11-23 01:49:09,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473289376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:49:09,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927658904] [2024-11-23 01:49:09,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:49:09,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:49:09,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:49:09,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:49:09,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 01:49:09,752 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:49:09,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:49:09,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 01:49:09,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:49:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:09,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:49:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927658904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:49:10,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:49:10,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2024-11-23 01:49:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923843523] [2024-11-23 01:49:10,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:49:10,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 01:49:10,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:10,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 01:49:10,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2024-11-23 01:49:10,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:49:10,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 504 transitions, 5185 flow. Second operand has 31 states, 31 states have (on average 15.35483870967742) internal successors, (476), 31 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:10,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:10,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:49:10,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:24,950 INFO L124 PetriNetUnfolderBase]: 19503/54075 cut-off events. [2024-11-23 01:49:24,951 INFO L125 PetriNetUnfolderBase]: For 2110005/2110005 co-relation queries the response was YES. [2024-11-23 01:49:25,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187673 conditions, 54075 events. 19503/54075 cut-off events. For 2110005/2110005 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 574436 event pairs, 2409 based on Foata normal form. 1275/55256 useless extension candidates. Maximal degree in co-relation 187566. Up to 8686 conditions per place. [2024-11-23 01:49:25,926 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 1264 selfloop transitions, 1084 changer transitions 0/2357 dead transitions. [2024-11-23 01:49:25,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 2357 transitions, 23831 flow [2024-11-23 01:49:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-23 01:49:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2024-11-23 01:49:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 2615 transitions. [2024-11-23 01:49:25,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6670918367346939 [2024-11-23 01:49:25,930 INFO L175 Difference]: Start difference. First operand has 249 places, 504 transitions, 5185 flow. Second operand 112 states and 2615 transitions. [2024-11-23 01:49:25,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 2357 transitions, 23831 flow [2024-11-23 01:49:28,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 2357 transitions, 23166 flow, removed 317 selfloop flow, removed 11 redundant places. [2024-11-23 01:49:28,793 INFO L231 Difference]: Finished difference. Result has 404 places, 1189 transitions, 15400 flow [2024-11-23 01:49:28,794 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} [2024-11-23 01:49:28,795 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 370 predicate places. [2024-11-23 01:49:28,795 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1189 transitions, 15400 flow [2024-11-23 01:49:28,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.35483870967742) internal successors, (476), 31 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:28,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:28,796 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] [2024-11-23 01:49:28,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 01:49:28,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:49:28,997 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:49:28,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:28,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1457796694, now seen corresponding path program 1 times [2024-11-23 01:49:28,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:28,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316234362] [2024-11-23 01:49:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:28,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316234362] [2024-11-23 01:49:29,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316234362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:49:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902032944] [2024-11-23 01:49:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:29,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:49:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:49:29,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:49:29,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 01:49:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:29,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 01:49:29,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:49:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:29,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:49:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902032944] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:49:29,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:49:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 40 [2024-11-23 01:49:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998217938] [2024-11-23 01:49:29,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:49:29,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-23 01:49:29,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:29,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-23 01:49:29,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2024-11-23 01:49:29,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-23 01:49:29,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1189 transitions, 15400 flow. Second operand has 42 states, 42 states have (on average 15.119047619047619) internal successors, (635), 42 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:49:29,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:29,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-23 01:49:29,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand