./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:02:04,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:02:04,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:02:04,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:02:04,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:02:04,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:02:04,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:02:04,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:02:04,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:02:04,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:02:04,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:02:04,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:02:04,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:02:04,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:02:04,585 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:02:04,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:02:04,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:02:04,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:02:04,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:02:04,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:02:04,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:02:04,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:02:04,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:02:04,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:02:04,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:02:04,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:02:04,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:02:04,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:02:04,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:02:04,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:02:04,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:02:04,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:02:04,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:02:04,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-09 15:02:04,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:02:04,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:02:04,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:02:04,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:02:04,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:02:04,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-09 15:02:05,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:02:06,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:02:06,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-09 15:02:06,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad47de7f1/b4e64351e1584d27a69b0fc00f56edf2/FLAG6d861bd02 [2024-11-09 15:02:06,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad47de7f1/b4e64351e1584d27a69b0fc00f56edf2 [2024-11-09 15:02:06,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:02:06,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:02:06,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:02:06,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:02:06,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:02:06,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f74ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06, skipping insertion in model container [2024-11-09 15:02:06,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:02:06,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:02:06,648 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:02:06,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:02:06,742 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:02:06,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06 WrapperNode [2024-11-09 15:02:06,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:02:06,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:02:06,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:02:06,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:02:06,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,803 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2024-11-09 15:02:06,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:02:06,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:02:06,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:02:06,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:02:06,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,834 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 15:02:06,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:02:06,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:02:06,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:02:06,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:02:06,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (1/1) ... [2024-11-09 15:02:06,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:02:06,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:06,880 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) [2024-11-09 15:02:06,882 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 [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-09 15:02:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:02:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:02:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:02:06,919 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:02:07,019 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:02:07,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:02:07,176 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:02:07,176 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:02:07,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:02:07,462 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 15:02:07,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:07 BoogieIcfgContainer [2024-11-09 15:02:07,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:02:07,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:02:07,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:02:07,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:02:07,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:02:06" (1/3) ... [2024-11-09 15:02:07,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c4fd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:07, skipping insertion in model container [2024-11-09 15:02:07,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:06" (2/3) ... [2024-11-09 15:02:07,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c4fd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:07, skipping insertion in model container [2024-11-09 15:02:07,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:07" (3/3) ... [2024-11-09 15:02:07,471 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-09 15:02:07,482 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:02:07,482 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 15:02:07,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:02:07,509 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 15:02:07,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2024-11-09 15:02:07,560 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-09 15:02:07,562 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:02:07,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-09 15:02:07,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2024-11-09 15:02:07,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2024-11-09 15:02:07,575 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:02:07,580 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;@bd72c19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:02:07,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:02:07,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:02:07,588 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-09 15:02:07,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:02:07,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:07,589 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:02:07,589 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)] === [2024-11-09 15:02:07,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash 366041552, now seen corresponding path program 1 times [2024-11-09 15:02:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:07,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850463280] [2024-11-09 15:02:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:07,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:07,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850463280] [2024-11-09 15:02:07,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850463280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:07,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:07,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:02:07,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916333372] [2024-11-09 15:02:07,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:07,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:02:07,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:02:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:02:07,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-09 15:02:07,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-09 15:02:07,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:07,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-09 15:02:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:07,888 INFO L124 PetriNetUnfolderBase]: 42/133 cut-off events. [2024-11-09 15:02:07,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:02:07,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 133 events. 42/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 549 event pairs, 6 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 213. Up to 66 conditions per place. [2024-11-09 15:02:07,890 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-11-09 15:02:07,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2024-11-09 15:02:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:02:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:02:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-09 15:02:07,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2024-11-09 15:02:07,899 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2024-11-09 15:02:07,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2024-11-09 15:02:07,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:07,903 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2024-11-09 15:02:07,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-09 15:02:07,906 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-09 15:02:07,906 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2024-11-09 15:02:07,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-09 15:02:07,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:07,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:02:07,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:02:07,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:07,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1536767146, now seen corresponding path program 1 times [2024-11-09 15:02:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30605825] [2024-11-09 15:02:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30605825] [2024-11-09 15:02:08,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30605825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:02:08,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472974198] [2024-11-09 15:02:08,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:02:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:02:08,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:02:08,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:08,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-09 15:02:08,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:08,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:08,113 INFO L124 PetriNetUnfolderBase]: 68/190 cut-off events. [2024-11-09 15:02:08,113 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 15:02:08,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 190 events. 68/190 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 879 event pairs, 18 based on Foata normal form. 8/159 useless extension candidates. Maximal degree in co-relation 371. Up to 107 conditions per place. [2024-11-09 15:02:08,116 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-09 15:02:08,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 182 flow [2024-11-09 15:02:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:02:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:02:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-11-09 15:02:08,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2024-11-09 15:02:08,119 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 97 transitions. [2024-11-09 15:02:08,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 182 flow [2024-11-09 15:02:08,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:08,120 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2024-11-09 15:02:08,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-09 15:02:08,121 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-09 15:02:08,121 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2024-11-09 15:02:08,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-09 15:02:08,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:08,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:08,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:02:08,121 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)] === [2024-11-09 15:02:08,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:08,122 INFO L85 PathProgramCache]: Analyzing trace with hash -421374207, now seen corresponding path program 1 times [2024-11-09 15:02:08,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:08,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588439195] [2024-11-09 15:02:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:08,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588439195] [2024-11-09 15:02:08,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588439195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:08,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222614440] [2024-11-09 15:02:08,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:02:08,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:02:08,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:02:08,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-09 15:02:08,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-09 15:02:08,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-09 15:02:08,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:08,328 INFO L124 PetriNetUnfolderBase]: 78/216 cut-off events. [2024-11-09 15:02:08,329 INFO L125 PetriNetUnfolderBase]: For 63/64 co-relation queries the response was YES. [2024-11-09 15:02:08,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 216 events. 78/216 cut-off events. For 63/64 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1024 event pairs, 23 based on Foata normal form. 13/189 useless extension candidates. Maximal degree in co-relation 473. Up to 97 conditions per place. [2024-11-09 15:02:08,331 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-09 15:02:08,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 242 flow [2024-11-09 15:02:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:02:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:02:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-09 15:02:08,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-09 15:02:08,332 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 83 transitions. [2024-11-09 15:02:08,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 242 flow [2024-11-09 15:02:08,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:08,334 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2024-11-09 15:02:08,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-11-09 15:02:08,335 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2024-11-09 15:02:08,335 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2024-11-09 15:02:08,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-09 15:02:08,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:08,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:08,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:02:08,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:08,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1802373294, now seen corresponding path program 1 times [2024-11-09 15:02:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:08,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532740070] [2024-11-09 15:02:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532740070] [2024-11-09 15:02:08,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532740070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:08,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64049973] [2024-11-09 15:02:08,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:02:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:02:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:02:08,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:08,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 15:02:08,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:08,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:08,543 INFO L124 PetriNetUnfolderBase]: 138/423 cut-off events. [2024-11-09 15:02:08,543 INFO L125 PetriNetUnfolderBase]: For 253/274 co-relation queries the response was YES. [2024-11-09 15:02:08,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 423 events. 138/423 cut-off events. For 253/274 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2366 event pairs, 19 based on Foata normal form. 17/382 useless extension candidates. Maximal degree in co-relation 1054. Up to 117 conditions per place. [2024-11-09 15:02:08,546 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 46 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2024-11-09 15:02:08,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 383 flow [2024-11-09 15:02:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:02:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:02:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-09 15:02:08,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-09 15:02:08,548 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 125 transitions. [2024-11-09 15:02:08,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 383 flow [2024-11-09 15:02:08,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:08,551 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2024-11-09 15:02:08,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-11-09 15:02:08,554 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-11-09 15:02:08,554 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2024-11-09 15:02:08,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 15:02:08,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:08,555 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:08,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:02:08,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:08,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1996177808, now seen corresponding path program 1 times [2024-11-09 15:02:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755228771] [2024-11-09 15:02:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:08,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755228771] [2024-11-09 15:02:08,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755228771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495061397] [2024-11-09 15:02:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:02:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:02:08,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:02:08,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:08,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 15:02:08,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:08,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:08,717 INFO L124 PetriNetUnfolderBase]: 160/515 cut-off events. [2024-11-09 15:02:08,717 INFO L125 PetriNetUnfolderBase]: For 852/867 co-relation queries the response was YES. [2024-11-09 15:02:08,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 515 events. 160/515 cut-off events. For 852/867 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3086 event pairs, 23 based on Foata normal form. 29/521 useless extension candidates. Maximal degree in co-relation 1467. Up to 239 conditions per place. [2024-11-09 15:02:08,721 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 41 selfloop transitions, 20 changer transitions 0/73 dead transitions. [2024-11-09 15:02:08,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 497 flow [2024-11-09 15:02:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:02:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:02:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-09 15:02:08,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-09 15:02:08,722 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 136 transitions. [2024-11-09 15:02:08,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 497 flow [2024-11-09 15:02:08,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 485 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:08,728 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2024-11-09 15:02:08,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-09 15:02:08,729 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-09 15:02:08,729 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2024-11-09 15:02:08,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 15:02:08,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:08,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:08,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:02:08,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:08,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash 863913689, now seen corresponding path program 1 times [2024-11-09 15:02:08,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:08,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474645126] [2024-11-09 15:02:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:08,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474645126] [2024-11-09 15:02:08,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474645126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:08,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610645243] [2024-11-09 15:02:08,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:02:08,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:02:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:02:08,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-09 15:02:08,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-09 15:02:08,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-09 15:02:08,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:08,890 INFO L124 PetriNetUnfolderBase]: 195/592 cut-off events. [2024-11-09 15:02:08,890 INFO L125 PetriNetUnfolderBase]: For 1746/1850 co-relation queries the response was YES. [2024-11-09 15:02:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 592 events. 195/592 cut-off events. For 1746/1850 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3772 event pairs, 55 based on Foata normal form. 46/601 useless extension candidates. Maximal degree in co-relation 1923. Up to 264 conditions per place. [2024-11-09 15:02:08,893 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 47 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-09 15:02:08,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 618 flow [2024-11-09 15:02:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:02:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:02:08,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-09 15:02:08,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-09 15:02:08,895 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 85 transitions. [2024-11-09 15:02:08,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 618 flow [2024-11-09 15:02:08,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 595 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-09 15:02:08,902 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2024-11-09 15:02:08,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-09 15:02:08,903 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2024-11-09 15:02:08,903 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2024-11-09 15:02:08,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-09 15:02:08,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:08,903 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:08,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:02:08,903 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:08,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2139062292, now seen corresponding path program 1 times [2024-11-09 15:02:08,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477366101] [2024-11-09 15:02:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:08,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477366101] [2024-11-09 15:02:08,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477366101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:08,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:08,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:02:08,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173711703] [2024-11-09 15:02:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:08,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:02:08,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:02:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:02:08,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:08,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-09 15:02:08,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:08,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:08,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:09,098 INFO L124 PetriNetUnfolderBase]: 152/503 cut-off events. [2024-11-09 15:02:09,099 INFO L125 PetriNetUnfolderBase]: For 1368/1385 co-relation queries the response was YES. [2024-11-09 15:02:09,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 503 events. 152/503 cut-off events. For 1368/1385 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3104 event pairs, 36 based on Foata normal form. 39/529 useless extension candidates. Maximal degree in co-relation 1692. Up to 276 conditions per place. [2024-11-09 15:02:09,101 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 43 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-11-09 15:02:09,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 530 flow [2024-11-09 15:02:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:02:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:02:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-11-09 15:02:09,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-09 15:02:09,103 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 8 states and 132 transitions. [2024-11-09 15:02:09,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 530 flow [2024-11-09 15:02:09,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 67 transitions, 505 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-09 15:02:09,107 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 334 flow [2024-11-09 15:02:09,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-09 15:02:09,108 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-09 15:02:09,108 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 334 flow [2024-11-09 15:02:09,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-09 15:02:09,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:09,109 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:09,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:02:09,109 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)] === [2024-11-09 15:02:09,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash -790426157, now seen corresponding path program 1 times [2024-11-09 15:02:09,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:09,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004626000] [2024-11-09 15:02:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:09,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:09,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:09,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004626000] [2024-11-09 15:02:09,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004626000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:09,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:09,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:02:09,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874494667] [2024-11-09 15:02:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:09,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:02:09,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:02:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:02:09,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:09,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-09 15:02:09,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:09,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:09,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:09,307 INFO L124 PetriNetUnfolderBase]: 194/609 cut-off events. [2024-11-09 15:02:09,308 INFO L125 PetriNetUnfolderBase]: For 1459/1503 co-relation queries the response was YES. [2024-11-09 15:02:09,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 609 events. 194/609 cut-off events. For 1459/1503 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3736 event pairs, 28 based on Foata normal form. 42/642 useless extension candidates. Maximal degree in co-relation 2043. Up to 254 conditions per place. [2024-11-09 15:02:09,312 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 53 selfloop transitions, 25 changer transitions 0/91 dead transitions. [2024-11-09 15:02:09,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 719 flow [2024-11-09 15:02:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:02:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:02:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-11-09 15:02:09,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-11-09 15:02:09,313 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 334 flow. Second operand 10 states and 182 transitions. [2024-11-09 15:02:09,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 719 flow [2024-11-09 15:02:09,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:02:09,317 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 499 flow [2024-11-09 15:02:09,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-09 15:02:09,317 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2024-11-09 15:02:09,317 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 499 flow [2024-11-09 15:02:09,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-09 15:02:09,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:09,318 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:09,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:02:09,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:09,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1554354743, now seen corresponding path program 1 times [2024-11-09 15:02:09,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:09,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322476962] [2024-11-09 15:02:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:09,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322476962] [2024-11-09 15:02:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322476962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526827112] [2024-11-09 15:02:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:09,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:09,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:09,374 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) [2024-11-09 15:02:09,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:02:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:09,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:02:09,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:09,539 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:02:09,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526827112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:09,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:02:09,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 15:02:09,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466728611] [2024-11-09 15:02:09,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:09,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:02:09,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:09,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:02:09,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:02:09,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:09,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 499 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) [2024-11-09 15:02:09,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:09,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:09,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:09,621 INFO L124 PetriNetUnfolderBase]: 247/674 cut-off events. [2024-11-09 15:02:09,621 INFO L125 PetriNetUnfolderBase]: For 2772/2858 co-relation queries the response was YES. [2024-11-09 15:02:09,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2624 conditions, 674 events. 247/674 cut-off events. For 2772/2858 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4159 event pairs, 33 based on Foata normal form. 53/668 useless extension candidates. Maximal degree in co-relation 2594. Up to 279 conditions per place. [2024-11-09 15:02:09,624 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 48 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-09 15:02:09,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 78 transitions, 740 flow [2024-11-09 15:02:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:02:09,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:02:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-09 15:02:09,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-09 15:02:09,625 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 499 flow. Second operand 4 states and 71 transitions. [2024-11-09 15:02:09,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 78 transitions, 740 flow [2024-11-09 15:02:09,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 78 transitions, 674 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-11-09 15:02:09,629 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 463 flow [2024-11-09 15:02:09,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-09 15:02:09,630 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-09 15:02:09,630 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 463 flow [2024-11-09 15:02:09,630 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) [2024-11-09 15:02:09,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:09,630 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:02:09,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:02:09,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:09,831 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:09,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash -940356396, now seen corresponding path program 1 times [2024-11-09 15:02:09,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:09,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963643804] [2024-11-09 15:02:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:02:09,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:09,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963643804] [2024-11-09 15:02:09,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963643804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:09,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:09,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:09,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067036917] [2024-11-09 15:02:09,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:09,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:02:09,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:09,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:02:09,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:02:09,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:09,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-09 15:02:09,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:09,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:09,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:09,965 INFO L124 PetriNetUnfolderBase]: 230/661 cut-off events. [2024-11-09 15:02:09,965 INFO L125 PetriNetUnfolderBase]: For 2146/2243 co-relation queries the response was YES. [2024-11-09 15:02:09,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 661 events. 230/661 cut-off events. For 2146/2243 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4027 event pairs, 23 based on Foata normal form. 66/707 useless extension candidates. Maximal degree in co-relation 2480. Up to 239 conditions per place. [2024-11-09 15:02:09,968 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 52 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2024-11-09 15:02:09,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 83 transitions, 738 flow [2024-11-09 15:02:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:02:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:02:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-09 15:02:09,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-09 15:02:09,969 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 463 flow. Second operand 4 states and 71 transitions. [2024-11-09 15:02:09,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 83 transitions, 738 flow [2024-11-09 15:02:09,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 83 transitions, 728 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:02:09,973 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 469 flow [2024-11-09 15:02:09,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-09 15:02:09,974 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-09 15:02:09,974 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 469 flow [2024-11-09 15:02:09,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-09 15:02:09,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:09,974 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:09,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:02:09,974 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:09,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash 185181774, now seen corresponding path program 1 times [2024-11-09 15:02:09,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:09,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957167823] [2024-11-09 15:02:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:10,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:10,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957167823] [2024-11-09 15:02:10,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957167823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:10,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637039113] [2024-11-09 15:02:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:10,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:10,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:10,036 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) [2024-11-09 15:02:10,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:02:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:10,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:02:10,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:10,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:02:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:10,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637039113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:02:10,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:02:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:02:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823212048] [2024-11-09 15:02:10,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:02:10,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:02:10,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:10,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:02:10,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:02:10,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:10,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 469 flow. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 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) [2024-11-09 15:02:10,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:10,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:10,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:10,498 INFO L124 PetriNetUnfolderBase]: 343/1016 cut-off events. [2024-11-09 15:02:10,498 INFO L125 PetriNetUnfolderBase]: For 5036/5065 co-relation queries the response was YES. [2024-11-09 15:02:10,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 1016 events. 343/1016 cut-off events. For 5036/5065 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6270 event pairs, 16 based on Foata normal form. 106/1116 useless extension candidates. Maximal degree in co-relation 4145. Up to 272 conditions per place. [2024-11-09 15:02:10,505 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 82 selfloop transitions, 71 changer transitions 0/165 dead transitions. [2024-11-09 15:02:10,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 165 transitions, 1601 flow [2024-11-09 15:02:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 15:02:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-09 15:02:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 399 transitions. [2024-11-09 15:02:10,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-11-09 15:02:10,507 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 469 flow. Second operand 22 states and 399 transitions. [2024-11-09 15:02:10,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 165 transitions, 1601 flow [2024-11-09 15:02:10,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 165 transitions, 1568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:02:10,513 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1265 flow [2024-11-09 15:02:10,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1265, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2024-11-09 15:02:10,514 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2024-11-09 15:02:10,514 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1265 flow [2024-11-09 15:02:10,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 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) [2024-11-09 15:02:10,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:10,514 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:10,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:02:10,715 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 [2024-11-09 15:02:10,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:10,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:10,716 INFO L85 PathProgramCache]: Analyzing trace with hash 756262837, now seen corresponding path program 1 times [2024-11-09 15:02:10,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:10,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470000662] [2024-11-09 15:02:10,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:10,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:10,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:10,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470000662] [2024-11-09 15:02:10,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470000662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866662727] [2024-11-09 15:02:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:10,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:10,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:10,813 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) [2024-11-09 15:02:10,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:02:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:10,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:02:10,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:10,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:02:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866662727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:02:11,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:02:11,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-09 15:02:11,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225622703] [2024-11-09 15:02:11,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:02:11,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:02:11,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:11,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:02:11,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:02:11,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:11,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1265 flow. Second operand has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 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) [2024-11-09 15:02:11,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:11,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:11,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:11,526 INFO L124 PetriNetUnfolderBase]: 762/2297 cut-off events. [2024-11-09 15:02:11,526 INFO L125 PetriNetUnfolderBase]: For 23782/23905 co-relation queries the response was YES. [2024-11-09 15:02:11,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10440 conditions, 2297 events. 762/2297 cut-off events. For 23782/23905 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17791 event pairs, 28 based on Foata normal form. 217/2506 useless extension candidates. Maximal degree in co-relation 10395. Up to 560 conditions per place. [2024-11-09 15:02:11,543 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 169 selfloop transitions, 165 changer transitions 0/346 dead transitions. [2024-11-09 15:02:11,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 346 transitions, 4189 flow [2024-11-09 15:02:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 15:02:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-09 15:02:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 626 transitions. [2024-11-09 15:02:11,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2024-11-09 15:02:11,546 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1265 flow. Second operand 33 states and 626 transitions. [2024-11-09 15:02:11,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 346 transitions, 4189 flow [2024-11-09 15:02:11,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 346 transitions, 3624 flow, removed 270 selfloop flow, removed 5 redundant places. [2024-11-09 15:02:11,576 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2847 flow [2024-11-09 15:02:11,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2847, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2024-11-09 15:02:11,577 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2024-11-09 15:02:11,577 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2847 flow [2024-11-09 15:02:11,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 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) [2024-11-09 15:02:11,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:11,577 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:11,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:02:11,781 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 [2024-11-09 15:02:11,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:11,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1718705938, now seen corresponding path program 1 times [2024-11-09 15:02:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:11,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072288973] [2024-11-09 15:02:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:11,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:11,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:11,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072288973] [2024-11-09 15:02:11,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072288973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:11,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385981905] [2024-11-09 15:02:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:11,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:11,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:11,844 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) [2024-11-09 15:02:11,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:02:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:11,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:02:11,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:11,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:02:11,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385981905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:11,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:02:11,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:02:11,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020350166] [2024-11-09 15:02:11,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:11,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:02:11,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:11,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:02:11,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:02:11,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-09 15:02:11,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2847 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-09 15:02:11,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:11,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-09 15:02:11,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:12,285 INFO L124 PetriNetUnfolderBase]: 781/2398 cut-off events. [2024-11-09 15:02:12,285 INFO L125 PetriNetUnfolderBase]: For 34363/34491 co-relation queries the response was YES. [2024-11-09 15:02:12,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11978 conditions, 2398 events. 781/2398 cut-off events. For 34363/34491 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19236 event pairs, 82 based on Foata normal form. 116/2443 useless extension candidates. Maximal degree in co-relation 11916. Up to 783 conditions per place. [2024-11-09 15:02:12,304 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 205 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-11-09 15:02:12,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 293 transitions, 4483 flow [2024-11-09 15:02:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:02:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:02:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-09 15:02:12,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-09 15:02:12,306 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2847 flow. Second operand 6 states and 115 transitions. [2024-11-09 15:02:12,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 293 transitions, 4483 flow [2024-11-09 15:02:12,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 293 transitions, 3622 flow, removed 372 selfloop flow, removed 12 redundant places. [2024-11-09 15:02:12,401 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2257 flow [2024-11-09 15:02:12,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2024-11-09 15:02:12,401 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2024-11-09 15:02:12,402 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2257 flow [2024-11-09 15:02:12,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-09 15:02:12,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:12,402 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:02:12,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:02:12,602 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 [2024-11-09 15:02:12,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:12,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1740276926, now seen corresponding path program 1 times [2024-11-09 15:02:12,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:12,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595873633] [2024-11-09 15:02:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:02:12,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595873633] [2024-11-09 15:02:12,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595873633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:12,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:12,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:12,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797701318] [2024-11-09 15:02:12,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:12,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:02:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:12,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:02:12,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:02:12,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:12,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2257 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-09 15:02:12,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:12,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:12,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:12,989 INFO L124 PetriNetUnfolderBase]: 870/2523 cut-off events. [2024-11-09 15:02:12,989 INFO L125 PetriNetUnfolderBase]: For 30021/30071 co-relation queries the response was YES. [2024-11-09 15:02:13,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11558 conditions, 2523 events. 870/2523 cut-off events. For 30021/30071 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19737 event pairs, 125 based on Foata normal form. 110/2613 useless extension candidates. Maximal degree in co-relation 11498. Up to 931 conditions per place. [2024-11-09 15:02:13,010 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 190 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2024-11-09 15:02:13,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 278 transitions, 3367 flow [2024-11-09 15:02:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:02:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:02:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-09 15:02:13,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-09 15:02:13,013 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2257 flow. Second operand 4 states and 73 transitions. [2024-11-09 15:02:13,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 278 transitions, 3367 flow [2024-11-09 15:02:13,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 278 transitions, 3358 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:02:13,066 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2264 flow [2024-11-09 15:02:13,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2264, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2024-11-09 15:02:13,067 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2024-11-09 15:02:13,068 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2264 flow [2024-11-09 15:02:13,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-09 15:02:13,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:13,068 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:13,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:02:13,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:13,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1031168989, now seen corresponding path program 1 times [2024-11-09 15:02:13,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:13,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544746290] [2024-11-09 15:02:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:13,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:13,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544746290] [2024-11-09 15:02:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544746290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:13,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418004686] [2024-11-09 15:02:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:13,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:13,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:13,169 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) [2024-11-09 15:02:13,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:02:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:13,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 15:02:13,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:13,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:02:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418004686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:02:13,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:02:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:02:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028782398] [2024-11-09 15:02:13,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:02:13,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:02:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:02:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:02:13,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:13,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2264 flow. Second operand has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 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) [2024-11-09 15:02:13,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:13,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:13,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:14,732 INFO L124 PetriNetUnfolderBase]: 1834/5367 cut-off events. [2024-11-09 15:02:14,732 INFO L125 PetriNetUnfolderBase]: For 137421/137497 co-relation queries the response was YES. [2024-11-09 15:02:14,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25172 conditions, 5367 events. 1834/5367 cut-off events. For 137421/137497 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 45716 event pairs, 18 based on Foata normal form. 520/5879 useless extension candidates. Maximal degree in co-relation 25113. Up to 1216 conditions per place. [2024-11-09 15:02:14,769 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 294 selfloop transitions, 415 changer transitions 0/720 dead transitions. [2024-11-09 15:02:14,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 720 transitions, 8726 flow [2024-11-09 15:02:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 15:02:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-09 15:02:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1169 transitions. [2024-11-09 15:02:14,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6387978142076502 [2024-11-09 15:02:14,775 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2264 flow. Second operand 61 states and 1169 transitions. [2024-11-09 15:02:14,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 720 transitions, 8726 flow [2024-11-09 15:02:14,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 720 transitions, 8611 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-09 15:02:14,875 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7142 flow [2024-11-09 15:02:14,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7142, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2024-11-09 15:02:14,875 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2024-11-09 15:02:14,876 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7142 flow [2024-11-09 15:02:14,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 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) [2024-11-09 15:02:14,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:14,876 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:02:14,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:02:15,076 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,SelfDestructingSolverStorable14 [2024-11-09 15:02:15,077 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)] === [2024-11-09 15:02:15,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:15,077 INFO L85 PathProgramCache]: Analyzing trace with hash -636451777, now seen corresponding path program 1 times [2024-11-09 15:02:15,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:15,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980236147] [2024-11-09 15:02:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:15,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980236147] [2024-11-09 15:02:15,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980236147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584477272] [2024-11-09 15:02:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:15,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:15,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:15,306 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) [2024-11-09 15:02:15,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:02:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:15,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 15:02:15,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:15,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:02:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:15,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584477272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:02:15,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:02:15,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2024-11-09 15:02:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608703980] [2024-11-09 15:02:15,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:02:15,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 15:02:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:15,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 15:02:15,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-09 15:02:15,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:15,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7142 flow. Second operand has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 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) [2024-11-09 15:02:15,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:15,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:15,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:21,198 INFO L124 PetriNetUnfolderBase]: 6251/18538 cut-off events. [2024-11-09 15:02:21,198 INFO L125 PetriNetUnfolderBase]: For 1645620/1645759 co-relation queries the response was YES. [2024-11-09 15:02:21,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99739 conditions, 18538 events. 6251/18538 cut-off events. For 1645620/1645759 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 192051 event pairs, 24 based on Foata normal form. 1435/19964 useless extension candidates. Maximal degree in co-relation 99642. Up to 4760 conditions per place. [2024-11-09 15:02:21,372 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 742 selfloop transitions, 1334 changer transitions 0/2087 dead transitions. [2024-11-09 15:02:21,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 2087 transitions, 32446 flow [2024-11-09 15:02:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-09 15:02:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2024-11-09 15:02:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2729 transitions. [2024-11-09 15:02:21,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6639902676399027 [2024-11-09 15:02:21,376 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7142 flow. Second operand 137 states and 2729 transitions. [2024-11-09 15:02:21,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 2087 transitions, 32446 flow [2024-11-09 15:02:22,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 2087 transitions, 26757 flow, removed 2815 selfloop flow, removed 9 redundant places. [2024-11-09 15:02:22,754 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22123 flow [2024-11-09 15:02:22,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5703, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22123, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2024-11-09 15:02:22,754 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2024-11-09 15:02:22,755 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22123 flow [2024-11-09 15:02:22,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 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) [2024-11-09 15:02:22,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:22,755 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:22,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:02:22,955 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,SelfDestructingSolverStorable15 [2024-11-09 15:02:22,955 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:02:22,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash -587900895, now seen corresponding path program 2 times [2024-11-09 15:02:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526028562] [2024-11-09 15:02:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:22,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:23,263 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:23,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526028562] [2024-11-09 15:02:23,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526028562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:02:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361097405] [2024-11-09 15:02:23,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:02:23,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:02:23,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:23,264 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) [2024-11-09 15:02:23,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:02:23,393 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:02:23,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:02:23,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 15:02:23,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:02:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:23,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:02:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:23,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361097405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:02:23,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:02:23,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-09 15:02:23,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086702639] [2024-11-09 15:02:23,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:02:23,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 15:02:23,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:23,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 15:02:23,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 15:02:23,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:02:23,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22123 flow. Second operand has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 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) [2024-11-09 15:02:23,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:23,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:02:23,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:48,910 INFO L124 PetriNetUnfolderBase]: 19835/57295 cut-off events. [2024-11-09 15:02:48,910 INFO L125 PetriNetUnfolderBase]: For 16885410/16885551 co-relation queries the response was YES. [2024-11-09 15:02:51,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332871 conditions, 57295 events. 19835/57295 cut-off events. For 16885410/16885551 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 672563 event pairs, 518 based on Foata normal form. 2417/59666 useless extension candidates. Maximal degree in co-relation 332688. Up to 12570 conditions per place. [2024-11-09 15:02:51,557 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 924 selfloop transitions, 5760 changer transitions 0/6695 dead transitions. [2024-11-09 15:02:51,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6695 transitions, 113318 flow [2024-11-09 15:02:51,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-09 15:02:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2024-11-09 15:02:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2733 transitions. [2024-11-09 15:02:51,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282758620689655 [2024-11-09 15:02:51,564 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22123 flow. Second operand 145 states and 2733 transitions. [2024-11-09 15:02:51,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6695 transitions, 113318 flow [2024-11-09 15:03:14,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 6695 transitions, 88894 flow, removed 12087 selfloop flow, removed 23 redundant places. [2024-11-09 15:03:14,437 INFO L231 Difference]: Finished difference. Result has 651 places, 6167 transitions, 92411 flow [2024-11-09 15:03:14,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=17837, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92411, PETRI_PLACES=651, PETRI_TRANSITIONS=6167} [2024-11-09 15:03:14,439 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 622 predicate places. [2024-11-09 15:03:14,439 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 6167 transitions, 92411 flow [2024-11-09 15:03:14,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 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) [2024-11-09 15:03:14,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:14,440 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:03:14,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:14,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:14,641 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:14,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:14,641 INFO L85 PathProgramCache]: Analyzing trace with hash 171217711, now seen corresponding path program 2 times [2024-11-09 15:03:14,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:14,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236629786] [2024-11-09 15:03:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:14,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:14,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:14,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236629786] [2024-11-09 15:03:14,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236629786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:14,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562371139] [2024-11-09 15:03:15,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:03:15,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:15,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:15,001 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) [2024-11-09 15:03:15,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:03:15,156 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:03:15,156 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:15,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 15:03:15,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:15,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:15,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562371139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:15,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:15,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-11-09 15:03:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711634063] [2024-11-09 15:03:15,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:15,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 15:03:15,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 15:03:15,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 15:03:15,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-09 15:03:15,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 6167 transitions, 92411 flow. Second operand has 41 states, 41 states have (on average 13.78048780487805) internal successors, (565), 41 states have internal predecessors, (565), 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) [2024-11-09 15:03:15,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:15,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-09 15:03:15,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand