./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/weaver/chl-match-symm.wvr.c -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 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:21:59,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:21:59,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:21:59,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:21:59,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:21:59,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:21:59,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:21:59,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:21:59,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:21:59,745 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:21:59,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:21:59,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:21:59,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:21:59,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:21:59,747 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:21:59,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:21:59,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:21:59,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:21:59,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:21:59,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:21:59,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:21:59,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:21:59,752 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:21:59,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:21:59,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:21:59,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:21:59,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:21:59,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:21:59,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:21:59,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:21:59,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:21:59,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:21:59,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:21:59,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-11-10 22:21:59,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:21:59,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:21:59,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:21:59,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:21:59,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:21:59,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-10 22:22:01,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:22:01,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:22:01,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-10 22:22:01,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b852b8d/9030643b020a4812ad22a7a4c8fc555a/FLAG430a9ac14 [2024-11-10 22:22:01,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b852b8d/9030643b020a4812ad22a7a4c8fc555a [2024-11-10 22:22:01,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:22:01,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:22:01,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:01,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:22:01,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:22:01,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:01,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6656a82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01, skipping insertion in model container [2024-11-10 22:22:01,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:01,568 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:22:01,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:01,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:22:01,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:01,977 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:22:01,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01 WrapperNode [2024-11-10 22:22:01,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:01,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:01,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:22:01,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:22:01,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,048 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 201 [2024-11-10 22:22:02,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:02,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:22:02,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:22:02,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:22:02,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,105 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]. [2024-11-10 22:22:02,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:22:02,136 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:22:02,136 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:22:02,136 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:22:02,137 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (1/1) ... [2024-11-10 22:22:02,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:22:02,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:02,176 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) [2024-11-10 22:22:02,181 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 [2024-11-10 22:22:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:22:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:22:02,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:22:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:22:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:22:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:22:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:22:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:22:02,213 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:22:02,328 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:22:02,329 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:22:02,633 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:22:02,633 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:22:02,811 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:22:02,812 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:22:02,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:02 BoogieIcfgContainer [2024-11-10 22:22:02,812 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:22:02,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:22:02,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:22:02,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:22:02,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:22:01" (1/3) ... [2024-11-10 22:22:02,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e0fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:02, skipping insertion in model container [2024-11-10 22:22:02,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:01" (2/3) ... [2024-11-10 22:22:02,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e0fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:02, skipping insertion in model container [2024-11-10 22:22:02,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:02" (3/3) ... [2024-11-10 22:22:02,821 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-11-10 22:22:02,833 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:22:02,834 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-10 22:22:02,834 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:22:02,893 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:22:02,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 182 flow [2024-11-10 22:22:02,960 INFO L124 PetriNetUnfolderBase]: 8/82 cut-off events. [2024-11-10 22:22:02,960 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:22:02,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 82 events. 8/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 276 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2024-11-10 22:22:02,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 84 transitions, 182 flow [2024-11-10 22:22:02,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 169 flow [2024-11-10 22:22:02,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:22:02,985 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;@56963847, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:22:02,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-10 22:22:02,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:22:02,994 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-10 22:22:02,994 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:22:02,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:02,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 22:22:02,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:03,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash 589560958, now seen corresponding path program 1 times [2024-11-10 22:22:03,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:03,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765901532] [2024-11-10 22:22:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:03,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:03,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:03,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765901532] [2024-11-10 22:22:03,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765901532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:03,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:03,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:03,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082833349] [2024-11-10 22:22:03,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:03,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:03,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:03,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-10 22:22:03,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-11-10 22:22:03,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:03,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-10 22:22:03,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:03,663 INFO L124 PetriNetUnfolderBase]: 1141/2594 cut-off events. [2024-11-10 22:22:03,664 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-10 22:22:03,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4413 conditions, 2594 events. 1141/2594 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 19312 event pairs, 271 based on Foata normal form. 104/2253 useless extension candidates. Maximal degree in co-relation 4346. Up to 872 conditions per place. [2024-11-10 22:22:03,683 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 64 selfloop transitions, 10 changer transitions 0/114 dead transitions. [2024-11-10 22:22:03,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 114 transitions, 391 flow [2024-11-10 22:22:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-11-10 22:22:03,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2024-11-10 22:22:03,696 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 169 flow. Second operand 4 states and 248 transitions. [2024-11-10 22:22:03,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 114 transitions, 391 flow [2024-11-10 22:22:03,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 114 transitions, 384 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:03,704 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 230 flow [2024-11-10 22:22:03,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2024-11-10 22:22:03,709 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2024-11-10 22:22:03,709 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 230 flow [2024-11-10 22:22:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-11-10 22:22:03,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:03,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:22:03,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:22:03,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:03,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1096521088, now seen corresponding path program 1 times [2024-11-10 22:22:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:03,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110971918] [2024-11-10 22:22:03,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:03,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:03,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110971918] [2024-11-10 22:22:03,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110971918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:03,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:03,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:03,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156684787] [2024-11-10 22:22:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:03,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:03,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-10 22:22:03,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-11-10 22:22:03,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:03,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-10 22:22:03,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:04,062 INFO L124 PetriNetUnfolderBase]: 828/2285 cut-off events. [2024-11-10 22:22:04,063 INFO L125 PetriNetUnfolderBase]: For 562/591 co-relation queries the response was YES. [2024-11-10 22:22:04,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4098 conditions, 2285 events. 828/2285 cut-off events. For 562/591 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18368 event pairs, 326 based on Foata normal form. 29/1905 useless extension candidates. Maximal degree in co-relation 3186. Up to 661 conditions per place. [2024-11-10 22:22:04,076 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 44 selfloop transitions, 7 changer transitions 0/99 dead transitions. [2024-11-10 22:22:04,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 99 transitions, 366 flow [2024-11-10 22:22:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-10 22:22:04,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-10 22:22:04,078 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 230 flow. Second operand 4 states and 240 transitions. [2024-11-10 22:22:04,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 99 transitions, 366 flow [2024-11-10 22:22:04,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 99 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:22:04,084 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 254 flow [2024-11-10 22:22:04,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2024-11-10 22:22:04,085 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-10 22:22:04,086 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 254 flow [2024-11-10 22:22:04,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-11-10 22:22:04,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:04,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:04,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:22:04,087 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:04,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:04,088 INFO L85 PathProgramCache]: Analyzing trace with hash -373688273, now seen corresponding path program 1 times [2024-11-10 22:22:04,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:04,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404027668] [2024-11-10 22:22:04,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:04,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:04,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404027668] [2024-11-10 22:22:04,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404027668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:04,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:04,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515215582] [2024-11-10 22:22:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:04,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:04,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:04,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-10 22:22:04,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-11-10 22:22:04,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:04,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-10 22:22:04,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:04,521 INFO L124 PetriNetUnfolderBase]: 1639/3646 cut-off events. [2024-11-10 22:22:04,522 INFO L125 PetriNetUnfolderBase]: For 2370/2560 co-relation queries the response was YES. [2024-11-10 22:22:04,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7655 conditions, 3646 events. 1639/3646 cut-off events. For 2370/2560 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 29039 event pairs, 415 based on Foata normal form. 236/3288 useless extension candidates. Maximal degree in co-relation 2893. Up to 1186 conditions per place. [2024-11-10 22:22:04,544 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 77 selfloop transitions, 10 changer transitions 0/126 dead transitions. [2024-11-10 22:22:04,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 126 transitions, 620 flow [2024-11-10 22:22:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:04,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-10 22:22:04,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2024-11-10 22:22:04,549 INFO L175 Difference]: Start difference. First operand has 83 places, 84 transitions, 254 flow. Second operand 4 states and 246 transitions. [2024-11-10 22:22:04,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 126 transitions, 620 flow [2024-11-10 22:22:04,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 126 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:04,558 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 312 flow [2024-11-10 22:22:04,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2024-11-10 22:22:04,560 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2024-11-10 22:22:04,560 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 312 flow [2024-11-10 22:22:04,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-11-10 22:22:04,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:04,561 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:04,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:22:04,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:04,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash -367614814, now seen corresponding path program 1 times [2024-11-10 22:22:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:04,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915593578] [2024-11-10 22:22:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:04,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:04,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:04,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915593578] [2024-11-10 22:22:04,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915593578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:04,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:04,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:04,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787907231] [2024-11-10 22:22:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:04,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:04,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:04,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:04,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-10 22:22:04,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-11-10 22:22:04,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:04,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-10 22:22:04,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:04,897 INFO L124 PetriNetUnfolderBase]: 1311/3469 cut-off events. [2024-11-10 22:22:04,897 INFO L125 PetriNetUnfolderBase]: For 2548/2657 co-relation queries the response was YES. [2024-11-10 22:22:04,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 3469 events. 1311/3469 cut-off events. For 2548/2657 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 30016 event pairs, 590 based on Foata normal form. 112/3116 useless extension candidates. Maximal degree in co-relation 6493. Up to 1043 conditions per place. [2024-11-10 22:22:04,916 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 54 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-10 22:22:04,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 502 flow [2024-11-10 22:22:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-11-10 22:22:04,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-11-10 22:22:04,918 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 312 flow. Second operand 4 states and 231 transitions. [2024-11-10 22:22:04,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 502 flow [2024-11-10 22:22:04,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 105 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:22:04,926 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 322 flow [2024-11-10 22:22:04,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=87, PETRI_TRANSITIONS=87} [2024-11-10 22:22:04,927 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2024-11-10 22:22:04,927 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 322 flow [2024-11-10 22:22:04,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-11-10 22:22:04,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:04,928 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:04,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:22:04,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:04,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1488842242, now seen corresponding path program 1 times [2024-11-10 22:22:04,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:04,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887376903] [2024-11-10 22:22:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:04,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:05,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:05,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887376903] [2024-11-10 22:22:05,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887376903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:05,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:05,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:05,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122206065] [2024-11-10 22:22:05,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:05,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:05,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:05,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:05,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:05,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-10 22:22:05,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-11-10 22:22:05,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:05,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-10 22:22:05,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:05,408 INFO L124 PetriNetUnfolderBase]: 1942/3873 cut-off events. [2024-11-10 22:22:05,408 INFO L125 PetriNetUnfolderBase]: For 2844/3060 co-relation queries the response was YES. [2024-11-10 22:22:05,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9483 conditions, 3873 events. 1942/3873 cut-off events. For 2844/3060 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 28537 event pairs, 502 based on Foata normal form. 114/3703 useless extension candidates. Maximal degree in co-relation 5205. Up to 1574 conditions per place. [2024-11-10 22:22:05,431 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 72 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2024-11-10 22:22:05,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 124 transitions, 636 flow [2024-11-10 22:22:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 291 transitions. [2024-11-10 22:22:05,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6928571428571428 [2024-11-10 22:22:05,434 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 322 flow. Second operand 5 states and 291 transitions. [2024-11-10 22:22:05,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 124 transitions, 636 flow [2024-11-10 22:22:05,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 124 transitions, 622 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:05,447 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 354 flow [2024-11-10 22:22:05,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2024-11-10 22:22:05,449 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2024-11-10 22:22:05,449 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 354 flow [2024-11-10 22:22:05,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-11-10 22:22:05,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:05,449 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:05,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:22:05,450 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:05,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1488843235, now seen corresponding path program 1 times [2024-11-10 22:22:05,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:05,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687387639] [2024-11-10 22:22:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687387639] [2024-11-10 22:22:05,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687387639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:05,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:05,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366106381] [2024-11-10 22:22:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:05,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:05,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-10 22:22:05,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:05,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:05,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-10 22:22:05,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:05,848 INFO L124 PetriNetUnfolderBase]: 1466/3451 cut-off events. [2024-11-10 22:22:05,849 INFO L125 PetriNetUnfolderBase]: For 3954/4094 co-relation queries the response was YES. [2024-11-10 22:22:05,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8581 conditions, 3451 events. 1466/3451 cut-off events. For 3954/4094 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 27773 event pairs, 468 based on Foata normal form. 144/3301 useless extension candidates. Maximal degree in co-relation 5168. Up to 938 conditions per place. [2024-11-10 22:22:05,869 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 74 selfloop transitions, 9 changer transitions 0/123 dead transitions. [2024-11-10 22:22:05,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 123 transitions, 656 flow [2024-11-10 22:22:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-10 22:22:05,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-10 22:22:05,871 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 354 flow. Second operand 4 states and 240 transitions. [2024-11-10 22:22:05,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 123 transitions, 656 flow [2024-11-10 22:22:05,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 123 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:05,881 INFO L231 Difference]: Finished difference. Result has 90 places, 85 transitions, 350 flow [2024-11-10 22:22:05,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=90, PETRI_TRANSITIONS=85} [2024-11-10 22:22:05,882 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-11-10 22:22:05,883 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 85 transitions, 350 flow [2024-11-10 22:22:05,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:05,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:05,883 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:05,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:22:05,884 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:05,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:05,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1300566036, now seen corresponding path program 1 times [2024-11-10 22:22:05,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:05,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944121831] [2024-11-10 22:22:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:05,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:05,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:05,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944121831] [2024-11-10 22:22:05,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944121831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:05,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:05,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:05,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110721845] [2024-11-10 22:22:05,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:05,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:05,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:05,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:05,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:05,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-10 22:22:05,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 85 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-11-10 22:22:05,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:05,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-10 22:22:05,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:06,236 INFO L124 PetriNetUnfolderBase]: 1306/3383 cut-off events. [2024-11-10 22:22:06,237 INFO L125 PetriNetUnfolderBase]: For 4879/5021 co-relation queries the response was YES. [2024-11-10 22:22:06,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8194 conditions, 3383 events. 1306/3383 cut-off events. For 4879/5021 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 28858 event pairs, 447 based on Foata normal form. 85/3058 useless extension candidates. Maximal degree in co-relation 3028. Up to 981 conditions per place. [2024-11-10 22:22:06,253 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 53 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-11-10 22:22:06,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 104 transitions, 595 flow [2024-11-10 22:22:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-11-10 22:22:06,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-11-10 22:22:06,254 INFO L175 Difference]: Start difference. First operand has 90 places, 85 transitions, 350 flow. Second operand 4 states and 239 transitions. [2024-11-10 22:22:06,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 104 transitions, 595 flow [2024-11-10 22:22:06,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:06,262 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 367 flow [2024-11-10 22:22:06,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=367, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-11-10 22:22:06,263 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2024-11-10 22:22:06,263 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 367 flow [2024-11-10 22:22:06,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-11-10 22:22:06,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:06,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:06,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:22:06,264 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:06,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1090530171, now seen corresponding path program 1 times [2024-11-10 22:22:06,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:06,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449910643] [2024-11-10 22:22:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:06,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:06,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449910643] [2024-11-10 22:22:06,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449910643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:06,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:06,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:06,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232512981] [2024-11-10 22:22:06,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:06,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:06,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:06,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:06,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:06,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:06,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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) [2024-11-10 22:22:06,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:06,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:06,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:06,833 INFO L124 PetriNetUnfolderBase]: 2074/4129 cut-off events. [2024-11-10 22:22:06,833 INFO L125 PetriNetUnfolderBase]: For 6217/6457 co-relation queries the response was YES. [2024-11-10 22:22:06,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11230 conditions, 4129 events. 2074/4129 cut-off events. For 6217/6457 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 31234 event pairs, 636 based on Foata normal form. 252/3989 useless extension candidates. Maximal degree in co-relation 4659. Up to 1331 conditions per place. [2024-11-10 22:22:06,853 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 133 selfloop transitions, 13 changer transitions 0/182 dead transitions. [2024-11-10 22:22:06,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 182 transitions, 1130 flow [2024-11-10 22:22:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:22:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:22:06,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 418 transitions. [2024-11-10 22:22:06,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6220238095238095 [2024-11-10 22:22:06,855 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 367 flow. Second operand 8 states and 418 transitions. [2024-11-10 22:22:06,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 182 transitions, 1130 flow [2024-11-10 22:22:06,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 182 transitions, 1097 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:06,866 INFO L231 Difference]: Finished difference. Result has 100 places, 87 transitions, 416 flow [2024-11-10 22:22:06,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=416, PETRI_PLACES=100, PETRI_TRANSITIONS=87} [2024-11-10 22:22:06,867 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-10 22:22:06,867 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 87 transitions, 416 flow [2024-11-10 22:22:06,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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) [2024-11-10 22:22:06,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:06,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:06,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:22:06,868 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:06,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1662811315, now seen corresponding path program 1 times [2024-11-10 22:22:06,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:06,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017947919] [2024-11-10 22:22:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:06,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:06,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017947919] [2024-11-10 22:22:06,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017947919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:06,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:06,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:06,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738474163] [2024-11-10 22:22:06,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:06,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:06,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:06,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:06,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:06,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-10 22:22:06,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 87 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-10 22:22:06,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:06,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-10 22:22:06,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:07,184 INFO L124 PetriNetUnfolderBase]: 1376/3302 cut-off events. [2024-11-10 22:22:07,184 INFO L125 PetriNetUnfolderBase]: For 9061/9366 co-relation queries the response was YES. [2024-11-10 22:22:07,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9287 conditions, 3302 events. 1376/3302 cut-off events. For 9061/9366 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 27193 event pairs, 548 based on Foata normal form. 249/3118 useless extension candidates. Maximal degree in co-relation 8329. Up to 1169 conditions per place. [2024-11-10 22:22:07,204 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 59 selfloop transitions, 7 changer transitions 0/106 dead transitions. [2024-11-10 22:22:07,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 106 transitions, 694 flow [2024-11-10 22:22:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2024-11-10 22:22:07,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-11-10 22:22:07,206 INFO L175 Difference]: Start difference. First operand has 100 places, 87 transitions, 416 flow. Second operand 4 states and 230 transitions. [2024-11-10 22:22:07,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 106 transitions, 694 flow [2024-11-10 22:22:07,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 106 transitions, 675 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:07,220 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 415 flow [2024-11-10 22:22:07,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=415, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-11-10 22:22:07,221 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-10 22:22:07,221 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 415 flow [2024-11-10 22:22:07,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-10 22:22:07,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:07,221 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:07,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:22:07,222 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:07,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:07,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1471992585, now seen corresponding path program 1 times [2024-11-10 22:22:07,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:07,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924559026] [2024-11-10 22:22:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:07,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924559026] [2024-11-10 22:22:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924559026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:07,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:22:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013617863] [2024-11-10 22:22:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:07,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:07,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:07,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:07,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 415 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2024-11-10 22:22:07,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:07,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:07,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:07,845 INFO L124 PetriNetUnfolderBase]: 1840/3706 cut-off events. [2024-11-10 22:22:07,845 INFO L125 PetriNetUnfolderBase]: For 7055/7198 co-relation queries the response was YES. [2024-11-10 22:22:07,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11087 conditions, 3706 events. 1840/3706 cut-off events. For 7055/7198 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 27400 event pairs, 591 based on Foata normal form. 170/3692 useless extension candidates. Maximal degree in co-relation 10037. Up to 1244 conditions per place. [2024-11-10 22:22:07,869 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 114 selfloop transitions, 16 changer transitions 0/164 dead transitions. [2024-11-10 22:22:07,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 164 transitions, 1055 flow [2024-11-10 22:22:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:07,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2024-11-10 22:22:07,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6626984126984127 [2024-11-10 22:22:07,871 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 415 flow. Second operand 6 states and 334 transitions. [2024-11-10 22:22:07,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 164 transitions, 1055 flow [2024-11-10 22:22:07,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 164 transitions, 1006 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:07,891 INFO L231 Difference]: Finished difference. Result has 100 places, 88 transitions, 447 flow [2024-11-10 22:22:07,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=447, PETRI_PLACES=100, PETRI_TRANSITIONS=88} [2024-11-10 22:22:07,892 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-10 22:22:07,892 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 88 transitions, 447 flow [2024-11-10 22:22:07,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2024-11-10 22:22:07,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:07,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:07,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:22:07,893 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash 7542838, now seen corresponding path program 1 times [2024-11-10 22:22:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973511277] [2024-11-10 22:22:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973511277] [2024-11-10 22:22:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973511277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:07,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:07,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:07,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618768658] [2024-11-10 22:22:07,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:07,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:07,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:08,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-10 22:22:08,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 88 transitions, 447 flow. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 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) [2024-11-10 22:22:08,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:08,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-10 22:22:08,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:08,325 INFO L124 PetriNetUnfolderBase]: 2037/3944 cut-off events. [2024-11-10 22:22:08,325 INFO L125 PetriNetUnfolderBase]: For 15444/15836 co-relation queries the response was YES. [2024-11-10 22:22:08,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12831 conditions, 3944 events. 2037/3944 cut-off events. For 15444/15836 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 28814 event pairs, 498 based on Foata normal form. 310/4026 useless extension candidates. Maximal degree in co-relation 11596. Up to 1616 conditions per place. [2024-11-10 22:22:08,345 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 85 selfloop transitions, 12 changer transitions 0/133 dead transitions. [2024-11-10 22:22:08,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 995 flow [2024-11-10 22:22:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:08,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-11-10 22:22:08,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880952380952381 [2024-11-10 22:22:08,347 INFO L175 Difference]: Start difference. First operand has 100 places, 88 transitions, 447 flow. Second operand 5 states and 289 transitions. [2024-11-10 22:22:08,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 995 flow [2024-11-10 22:22:08,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 133 transitions, 890 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-10 22:22:08,359 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 452 flow [2024-11-10 22:22:08,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-10 22:22:08,360 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-10 22:22:08,360 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 452 flow [2024-11-10 22:22:08,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 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) [2024-11-10 22:22:08,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:08,361 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:08,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:22:08,361 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:08,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 7543831, now seen corresponding path program 1 times [2024-11-10 22:22:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382668461] [2024-11-10 22:22:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:08,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:08,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382668461] [2024-11-10 22:22:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382668461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:08,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784588695] [2024-11-10 22:22:08,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:08,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:08,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:08,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-10 22:22:08,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2024-11-10 22:22:08,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:08,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-10 22:22:08,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:08,694 INFO L124 PetriNetUnfolderBase]: 1538/3401 cut-off events. [2024-11-10 22:22:08,695 INFO L125 PetriNetUnfolderBase]: For 9608/9899 co-relation queries the response was YES. [2024-11-10 22:22:08,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10366 conditions, 3401 events. 1538/3401 cut-off events. For 9608/9899 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 26474 event pairs, 498 based on Foata normal form. 300/3512 useless extension candidates. Maximal degree in co-relation 9364. Up to 1042 conditions per place. [2024-11-10 22:22:08,709 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 87 selfloop transitions, 9 changer transitions 0/132 dead transitions. [2024-11-10 22:22:08,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 132 transitions, 924 flow [2024-11-10 22:22:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-10 22:22:08,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-10 22:22:08,710 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 452 flow. Second operand 4 states and 238 transitions. [2024-11-10 22:22:08,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 132 transitions, 924 flow [2024-11-10 22:22:08,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 132 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:08,721 INFO L231 Difference]: Finished difference. Result has 100 places, 86 transitions, 448 flow [2024-11-10 22:22:08,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=448, PETRI_PLACES=100, PETRI_TRANSITIONS=86} [2024-11-10 22:22:08,722 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-10 22:22:08,722 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 86 transitions, 448 flow [2024-11-10 22:22:08,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2024-11-10 22:22:08,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:08,723 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:08,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:22:08,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:08,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 233828598, now seen corresponding path program 1 times [2024-11-10 22:22:08,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:08,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184080205] [2024-11-10 22:22:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:08,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:08,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:08,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184080205] [2024-11-10 22:22:08,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184080205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:08,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:08,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:08,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963790317] [2024-11-10 22:22:08,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:08,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:08,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:08,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:08,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:08,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:08,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 86 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-11-10 22:22:08,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:08,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:08,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:09,256 INFO L124 PetriNetUnfolderBase]: 2060/3846 cut-off events. [2024-11-10 22:22:09,256 INFO L125 PetriNetUnfolderBase]: For 12353/12775 co-relation queries the response was YES. [2024-11-10 22:22:09,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12582 conditions, 3846 events. 2060/3846 cut-off events. For 12353/12775 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 27139 event pairs, 648 based on Foata normal form. 432/4104 useless extension candidates. Maximal degree in co-relation 11366. Up to 1355 conditions per place. [2024-11-10 22:22:09,271 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 152 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-11-10 22:22:09,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 198 transitions, 1504 flow [2024-11-10 22:22:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:22:09,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:22:09,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 413 transitions. [2024-11-10 22:22:09,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-11-10 22:22:09,273 INFO L175 Difference]: Start difference. First operand has 100 places, 86 transitions, 448 flow. Second operand 8 states and 413 transitions. [2024-11-10 22:22:09,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 198 transitions, 1504 flow [2024-11-10 22:22:09,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 198 transitions, 1497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:09,284 INFO L231 Difference]: Finished difference. Result has 109 places, 88 transitions, 498 flow [2024-11-10 22:22:09,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=498, PETRI_PLACES=109, PETRI_TRANSITIONS=88} [2024-11-10 22:22:09,285 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-11-10 22:22:09,285 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 88 transitions, 498 flow [2024-11-10 22:22:09,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-11-10 22:22:09,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:09,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:09,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:22:09,286 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:09,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:09,286 INFO L85 PathProgramCache]: Analyzing trace with hash -851054777, now seen corresponding path program 1 times [2024-11-10 22:22:09,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:09,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249704848] [2024-11-10 22:22:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:09,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:09,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:09,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249704848] [2024-11-10 22:22:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249704848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:09,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775232726] [2024-11-10 22:22:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:09,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:09,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:09,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:09,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-10 22:22:09,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 88 transitions, 498 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-11-10 22:22:09,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:09,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-10 22:22:09,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:09,562 INFO L124 PetriNetUnfolderBase]: 1250/2867 cut-off events. [2024-11-10 22:22:09,562 INFO L125 PetriNetUnfolderBase]: For 11112/11428 co-relation queries the response was YES. [2024-11-10 22:22:09,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10149 conditions, 2867 events. 1250/2867 cut-off events. For 11112/11428 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 22061 event pairs, 389 based on Foata normal form. 229/3012 useless extension candidates. Maximal degree in co-relation 9163. Up to 1117 conditions per place. [2024-11-10 22:22:09,579 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 60 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2024-11-10 22:22:09,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 796 flow [2024-11-10 22:22:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-10 22:22:09,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-10 22:22:09,584 INFO L175 Difference]: Start difference. First operand has 109 places, 88 transitions, 498 flow. Second operand 4 states and 238 transitions. [2024-11-10 22:22:09,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 109 transitions, 796 flow [2024-11-10 22:22:09,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 109 transitions, 777 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:09,622 INFO L231 Difference]: Finished difference. Result has 109 places, 88 transitions, 521 flow [2024-11-10 22:22:09,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=521, PETRI_PLACES=109, PETRI_TRANSITIONS=88} [2024-11-10 22:22:09,623 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-11-10 22:22:09,623 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 88 transitions, 521 flow [2024-11-10 22:22:09,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-11-10 22:22:09,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:09,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:09,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:22:09,623 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:09,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash -422558499, now seen corresponding path program 1 times [2024-11-10 22:22:09,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:09,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495173596] [2024-11-10 22:22:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:09,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:09,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495173596] [2024-11-10 22:22:09,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495173596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:09,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:09,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:22:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265798318] [2024-11-10 22:22:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:09,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:09,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:09,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:09,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:09,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:09,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 88 transitions, 521 flow. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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) [2024-11-10 22:22:09,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:09,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:09,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:10,265 INFO L124 PetriNetUnfolderBase]: 1923/3611 cut-off events. [2024-11-10 22:22:10,266 INFO L125 PetriNetUnfolderBase]: For 16164/16517 co-relation queries the response was YES. [2024-11-10 22:22:10,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13522 conditions, 3611 events. 1923/3611 cut-off events. For 16164/16517 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 25147 event pairs, 634 based on Foata normal form. 358/3908 useless extension candidates. Maximal degree in co-relation 12346. Up to 1331 conditions per place. [2024-11-10 22:22:10,288 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 135 selfloop transitions, 16 changer transitions 0/182 dead transitions. [2024-11-10 22:22:10,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 182 transitions, 1535 flow [2024-11-10 22:22:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:10,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-11-10 22:22:10,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-10 22:22:10,290 INFO L175 Difference]: Start difference. First operand has 109 places, 88 transitions, 521 flow. Second operand 6 states and 330 transitions. [2024-11-10 22:22:10,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 182 transitions, 1535 flow [2024-11-10 22:22:10,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 182 transitions, 1493 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:10,320 INFO L231 Difference]: Finished difference. Result has 111 places, 90 transitions, 560 flow [2024-11-10 22:22:10,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=560, PETRI_PLACES=111, PETRI_TRANSITIONS=90} [2024-11-10 22:22:10,321 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2024-11-10 22:22:10,321 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 90 transitions, 560 flow [2024-11-10 22:22:10,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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) [2024-11-10 22:22:10,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:10,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:10,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:22:10,322 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:10,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -612924467, now seen corresponding path program 1 times [2024-11-10 22:22:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919453668] [2024-11-10 22:22:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:10,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:10,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919453668] [2024-11-10 22:22:10,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919453668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:10,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:10,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029923881] [2024-11-10 22:22:10,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:10,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:10,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:10,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-10 22:22:10,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 90 transitions, 560 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-11-10 22:22:10,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:10,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-10 22:22:10,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:10,655 INFO L124 PetriNetUnfolderBase]: 1191/2838 cut-off events. [2024-11-10 22:22:10,656 INFO L125 PetriNetUnfolderBase]: For 12744/12955 co-relation queries the response was YES. [2024-11-10 22:22:10,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 2838 events. 1191/2838 cut-off events. For 12744/12955 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22069 event pairs, 491 based on Foata normal form. 213/3006 useless extension candidates. Maximal degree in co-relation 9646. Up to 1025 conditions per place. [2024-11-10 22:22:10,672 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 63 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2024-11-10 22:22:10,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 112 transitions, 875 flow [2024-11-10 22:22:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2024-11-10 22:22:10,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-11-10 22:22:10,678 INFO L175 Difference]: Start difference. First operand has 111 places, 90 transitions, 560 flow. Second operand 4 states and 227 transitions. [2024-11-10 22:22:10,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 112 transitions, 875 flow [2024-11-10 22:22:10,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 802 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-10 22:22:10,704 INFO L231 Difference]: Finished difference. Result has 107 places, 89 transitions, 529 flow [2024-11-10 22:22:10,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=529, PETRI_PLACES=107, PETRI_TRANSITIONS=89} [2024-11-10 22:22:10,704 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2024-11-10 22:22:10,704 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 89 transitions, 529 flow [2024-11-10 22:22:10,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-11-10 22:22:10,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:10,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:10,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:22:10,705 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:10,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1820789687, now seen corresponding path program 1 times [2024-11-10 22:22:10,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:10,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343203966] [2024-11-10 22:22:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:10,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343203966] [2024-11-10 22:22:10,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343203966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:10,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:10,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551236219] [2024-11-10 22:22:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:10,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:10,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:10,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-10 22:22:10,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 89 transitions, 529 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-11-10 22:22:10,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:10,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-10 22:22:10,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:11,153 INFO L124 PetriNetUnfolderBase]: 1899/3586 cut-off events. [2024-11-10 22:22:11,153 INFO L125 PetriNetUnfolderBase]: For 12886/13212 co-relation queries the response was YES. [2024-11-10 22:22:11,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13088 conditions, 3586 events. 1899/3586 cut-off events. For 12886/13212 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 24923 event pairs, 389 based on Foata normal form. 320/3885 useless extension candidates. Maximal degree in co-relation 11831. Up to 1615 conditions per place. [2024-11-10 22:22:11,172 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 90 selfloop transitions, 12 changer transitions 0/134 dead transitions. [2024-11-10 22:22:11,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 134 transitions, 1015 flow [2024-11-10 22:22:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:11,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-11-10 22:22:11,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-10 22:22:11,174 INFO L175 Difference]: Start difference. First operand has 107 places, 89 transitions, 529 flow. Second operand 5 states and 288 transitions. [2024-11-10 22:22:11,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 134 transitions, 1015 flow [2024-11-10 22:22:11,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 134 transitions, 971 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-10 22:22:11,203 INFO L231 Difference]: Finished difference. Result has 104 places, 88 transitions, 505 flow [2024-11-10 22:22:11,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=104, PETRI_TRANSITIONS=88} [2024-11-10 22:22:11,204 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 25 predicate places. [2024-11-10 22:22:11,204 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 88 transitions, 505 flow [2024-11-10 22:22:11,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-11-10 22:22:11,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:11,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:11,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:22:11,204 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:11,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash -448511813, now seen corresponding path program 1 times [2024-11-10 22:22:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:11,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827952082] [2024-11-10 22:22:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:11,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:11,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:11,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827952082] [2024-11-10 22:22:11,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827952082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:11,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:11,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:11,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815473431] [2024-11-10 22:22:11,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:11,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:11,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-10 22:22:11,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 88 transitions, 505 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-11-10 22:22:11,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:11,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-10 22:22:11,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:11,479 INFO L124 PetriNetUnfolderBase]: 1313/2965 cut-off events. [2024-11-10 22:22:11,480 INFO L125 PetriNetUnfolderBase]: For 11392/11623 co-relation queries the response was YES. [2024-11-10 22:22:11,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10463 conditions, 2965 events. 1313/2965 cut-off events. For 11392/11623 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 22639 event pairs, 422 based on Foata normal form. 209/3134 useless extension candidates. Maximal degree in co-relation 9616. Up to 1152 conditions per place. [2024-11-10 22:22:11,495 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 65 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-11-10 22:22:11,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 826 flow [2024-11-10 22:22:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-11-10 22:22:11,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-11-10 22:22:11,497 INFO L175 Difference]: Start difference. First operand has 104 places, 88 transitions, 505 flow. Second operand 4 states and 237 transitions. [2024-11-10 22:22:11,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 826 flow [2024-11-10 22:22:11,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 807 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:11,515 INFO L231 Difference]: Finished difference. Result has 105 places, 88 transitions, 528 flow [2024-11-10 22:22:11,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=528, PETRI_PLACES=105, PETRI_TRANSITIONS=88} [2024-11-10 22:22:11,516 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 26 predicate places. [2024-11-10 22:22:11,516 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 88 transitions, 528 flow [2024-11-10 22:22:11,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-11-10 22:22:11,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:11,516 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:11,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:22:11,516 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:11,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -609904848, now seen corresponding path program 1 times [2024-11-10 22:22:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:11,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910707802] [2024-11-10 22:22:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:11,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:11,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:11,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910707802] [2024-11-10 22:22:11,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910707802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:11,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:11,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:11,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761959500] [2024-11-10 22:22:11,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:11,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:11,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:11,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:11,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:11,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 88 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-10 22:22:11,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:11,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:11,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:11,991 INFO L124 PetriNetUnfolderBase]: 1624/3248 cut-off events. [2024-11-10 22:22:11,992 INFO L125 PetriNetUnfolderBase]: For 13963/14222 co-relation queries the response was YES. [2024-11-10 22:22:11,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12174 conditions, 3248 events. 1624/3248 cut-off events. For 13963/14222 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 23175 event pairs, 520 based on Foata normal form. 281/3472 useless extension candidates. Maximal degree in co-relation 11404. Up to 1079 conditions per place. [2024-11-10 22:22:12,006 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 142 selfloop transitions, 14 changer transitions 18/207 dead transitions. [2024-11-10 22:22:12,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 207 transitions, 1772 flow [2024-11-10 22:22:12,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:22:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:22:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 410 transitions. [2024-11-10 22:22:12,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6101190476190477 [2024-11-10 22:22:12,008 INFO L175 Difference]: Start difference. First operand has 105 places, 88 transitions, 528 flow. Second operand 8 states and 410 transitions. [2024-11-10 22:22:12,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 207 transitions, 1772 flow [2024-11-10 22:22:12,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 207 transitions, 1733 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:12,025 INFO L231 Difference]: Finished difference. Result has 108 places, 84 transitions, 507 flow [2024-11-10 22:22:12,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=507, PETRI_PLACES=108, PETRI_TRANSITIONS=84} [2024-11-10 22:22:12,026 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2024-11-10 22:22:12,026 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 84 transitions, 507 flow [2024-11-10 22:22:12,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-10 22:22:12,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:12,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:12,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:22:12,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:12,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1018994434, now seen corresponding path program 1 times [2024-11-10 22:22:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:12,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673737125] [2024-11-10 22:22:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:12,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:12,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673737125] [2024-11-10 22:22:12,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673737125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:12,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:12,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:12,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133290358] [2024-11-10 22:22:12,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:12,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:12,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-10 22:22:12,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 84 transitions, 507 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 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) [2024-11-10 22:22:12,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:12,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-10 22:22:12,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:12,275 INFO L124 PetriNetUnfolderBase]: 1117/2675 cut-off events. [2024-11-10 22:22:12,275 INFO L125 PetriNetUnfolderBase]: For 11345/11528 co-relation queries the response was YES. [2024-11-10 22:22:12,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9556 conditions, 2675 events. 1117/2675 cut-off events. For 11345/11528 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 20823 event pairs, 475 based on Foata normal form. 204/2839 useless extension candidates. Maximal degree in co-relation 8695. Up to 925 conditions per place. [2024-11-10 22:22:12,289 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-11-10 22:22:12,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 106 transitions, 815 flow [2024-11-10 22:22:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-11-10 22:22:12,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-11-10 22:22:12,290 INFO L175 Difference]: Start difference. First operand has 108 places, 84 transitions, 507 flow. Second operand 4 states and 225 transitions. [2024-11-10 22:22:12,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 106 transitions, 815 flow [2024-11-10 22:22:12,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 738 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-10 22:22:12,307 INFO L231 Difference]: Finished difference. Result has 100 places, 83 transitions, 463 flow [2024-11-10 22:22:12,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=100, PETRI_TRANSITIONS=83} [2024-11-10 22:22:12,308 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-10 22:22:12,308 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 83 transitions, 463 flow [2024-11-10 22:22:12,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 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) [2024-11-10 22:22:12,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:12,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:12,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 22:22:12,308 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:12,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1524056739, now seen corresponding path program 1 times [2024-11-10 22:22:12,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:12,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542441831] [2024-11-10 22:22:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:12,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542441831] [2024-11-10 22:22:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542441831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:12,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:12,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:12,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823022974] [2024-11-10 22:22:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:12,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:12,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:12,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:12,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-10 22:22:12,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 83 transitions, 463 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-11-10 22:22:12,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:12,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-10 22:22:12,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:12,686 INFO L124 PetriNetUnfolderBase]: 1849/3394 cut-off events. [2024-11-10 22:22:12,687 INFO L125 PetriNetUnfolderBase]: For 11155/11434 co-relation queries the response was YES. [2024-11-10 22:22:12,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11807 conditions, 3394 events. 1849/3394 cut-off events. For 11155/11434 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 23060 event pairs, 369 based on Foata normal form. 315/3684 useless extension candidates. Maximal degree in co-relation 10472. Up to 1666 conditions per place. [2024-11-10 22:22:12,700 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 89 selfloop transitions, 9 changer transitions 2/128 dead transitions. [2024-11-10 22:22:12,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 128 transitions, 945 flow [2024-11-10 22:22:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2024-11-10 22:22:12,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-10 22:22:12,702 INFO L175 Difference]: Start difference. First operand has 100 places, 83 transitions, 463 flow. Second operand 5 states and 285 transitions. [2024-11-10 22:22:12,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 128 transitions, 945 flow [2024-11-10 22:22:12,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 128 transitions, 921 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:22:12,720 INFO L231 Difference]: Finished difference. Result has 99 places, 80 transitions, 443 flow [2024-11-10 22:22:12,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=443, PETRI_PLACES=99, PETRI_TRANSITIONS=80} [2024-11-10 22:22:12,721 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-10 22:22:12,721 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 443 flow [2024-11-10 22:22:12,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-11-10 22:22:12,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:12,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:12,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 22:22:12,722 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-10 22:22:12,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1118015, now seen corresponding path program 1 times [2024-11-10 22:22:12,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:12,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530002071] [2024-11-10 22:22:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:12,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:12,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:12,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530002071] [2024-11-10 22:22:12,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530002071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:12,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:12,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281691628] [2024-11-10 22:22:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:12,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:12,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-10 22:22:12,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-11-10 22:22:12,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:12,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-10 22:22:12,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:13,133 INFO L124 PetriNetUnfolderBase]: 1361/2709 cut-off events. [2024-11-10 22:22:13,134 INFO L125 PetriNetUnfolderBase]: For 8475/8678 co-relation queries the response was YES. [2024-11-10 22:22:13,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9584 conditions, 2709 events. 1361/2709 cut-off events. For 8475/8678 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 18918 event pairs, 475 based on Foata normal form. 255/2937 useless extension candidates. Maximal degree in co-relation 9566. Up to 925 conditions per place. [2024-11-10 22:22:13,142 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 0 selfloop transitions, 0 changer transitions 194/194 dead transitions. [2024-11-10 22:22:13,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 194 transitions, 1502 flow [2024-11-10 22:22:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:22:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:22:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2024-11-10 22:22:13,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-11-10 22:22:13,144 INFO L175 Difference]: Start difference. First operand has 99 places, 80 transitions, 443 flow. Second operand 8 states and 402 transitions. [2024-11-10 22:22:13,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 194 transitions, 1502 flow [2024-11-10 22:22:13,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 194 transitions, 1494 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:13,158 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2024-11-10 22:22:13,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2024-11-10 22:22:13,158 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 23 predicate places. [2024-11-10 22:22:13,158 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2024-11-10 22:22:13,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-11-10 22:22:13,161 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-10 22:22:13,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-10 22:22:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-10 22:22:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-10 22:22:13,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-10 22:22:13,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-10 22:22:13,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-10 22:22:13,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 22:22:13,171 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:13,178 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:22:13,178 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:22:13,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:22:13 BasicIcfg [2024-11-10 22:22:13,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:22:13,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:22:13,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:22:13,183 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:22:13,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:02" (3/4) ... [2024-11-10 22:22:13,185 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:22:13,187 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:22:13,187 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:22:13,192 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2024-11-10 22:22:13,193 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-10 22:22:13,193 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:22:13,193 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 22:22:13,268 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:22:13,268 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:22:13,268 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:22:13,269 INFO L158 Benchmark]: Toolchain (without parser) took 11742.88ms. Allocated memory was 201.3MB in the beginning and 738.2MB in the end (delta: 536.9MB). Free memory was 132.0MB in the beginning and 420.6MB in the end (delta: -288.6MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,269 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 117.4MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:22:13,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.11ms. Allocated memory is still 201.3MB. Free memory was 131.8MB in the beginning and 117.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.34ms. Allocated memory is still 201.3MB. Free memory was 117.6MB in the beginning and 115.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,269 INFO L158 Benchmark]: Boogie Preprocessor took 82.46ms. Allocated memory is still 201.3MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,269 INFO L158 Benchmark]: IcfgBuilder took 677.00ms. Allocated memory is still 201.3MB. Free memory was 113.0MB in the beginning and 122.6MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,270 INFO L158 Benchmark]: TraceAbstraction took 10367.73ms. Allocated memory was 201.3MB in the beginning and 738.2MB in the end (delta: 536.9MB). Free memory was 122.1MB in the beginning and 424.8MB in the end (delta: -302.7MB). Peak memory consumption was 237.3MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,270 INFO L158 Benchmark]: Witness Printer took 84.97ms. Allocated memory is still 738.2MB. Free memory was 424.8MB in the beginning and 420.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:22:13,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 117.4MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.11ms. Allocated memory is still 201.3MB. Free memory was 131.8MB in the beginning and 117.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.34ms. Allocated memory is still 201.3MB. Free memory was 117.6MB in the beginning and 115.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.46ms. Allocated memory is still 201.3MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 677.00ms. Allocated memory is still 201.3MB. Free memory was 113.0MB in the beginning and 122.6MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10367.73ms. Allocated memory was 201.3MB in the beginning and 738.2MB in the end (delta: 536.9MB). Free memory was 122.1MB in the beginning and 424.8MB in the end (delta: -302.7MB). Peak memory consumption was 237.3MB. Max. memory is 16.1GB. * Witness Printer took 84.97ms. Allocated memory is still 738.2MB. Free memory was 424.8MB in the beginning and 420.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 50 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.3s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2685 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2035 mSDsluCounter, 401 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 286 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4142 IncrementalHoareTripleChecker+Invalid, 4428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 286 mSolverCounterUnsat, 153 mSDtfsCounter, 4142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=560occurred in iteration=15, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:22:13,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE