./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-subst.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-file-item-subst.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 d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:21:44,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:21:44,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:21:44,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:21:44,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:21:44,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:21:44,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:21:44,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:21:44,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:21:44,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:21:44,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:21:44,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:21:44,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:21:44,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:21:44,654 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:21:44,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:21:44,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:21:44,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:21:44,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:21:44,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:21:44,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:21:44,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:21:44,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:21:44,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:21:44,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:21:44,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:21:44,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:21:44,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:21:44,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:21:44,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:21:44,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:21:44,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:21:44,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:21:44,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:21:44,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:21:44,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:21:44,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:21:44,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:21:44,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:21:44,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 [2024-11-10 22:21:44,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:21:44,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:21:44,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:21:44,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:21:44,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:21:44,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2024-11-10 22:21:46,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:21:46,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:21:46,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2024-11-10 22:21:46,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f40ee357/dd976b8672544736bb9bb33c01a76904/FLAG15120a0b4 [2024-11-10 22:21:46,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f40ee357/dd976b8672544736bb9bb33c01a76904 [2024-11-10 22:21:46,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:21:46,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:21:46,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:21:46,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:21:46,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:21:46,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:46,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ccaead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46, skipping insertion in model container [2024-11-10 22:21:46,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:46,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:21:46,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:21:46,862 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:21:46,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:21:46,908 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:21:46,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46 WrapperNode [2024-11-10 22:21:46,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:21:46,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:21:46,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:21:46,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:21:46,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:46,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:46,955 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 240 [2024-11-10 22:21:46,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:21:46,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:21:46,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:21:46,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:21:47,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,034 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 22:21:47,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:21:47,069 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:21:47,072 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:21:47,072 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:21:47,072 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (1/1) ... [2024-11-10 22:21:47,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:21:47,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:21:47,099 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 22:21:47,101 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 22:21:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:21:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:21:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:21:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:21:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:21:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:21:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:21:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:21:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:21:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:21:47,136 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 22:21:47,224 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:21:47,225 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:21:47,530 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:21:47,530 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:21:47,693 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:21:47,694 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:21:47,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:21:47 BoogieIcfgContainer [2024-11-10 22:21:47,694 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:21:47,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:21:47,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:21:47,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:21:47,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:21:46" (1/3) ... [2024-11-10 22:21:47,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5811d415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:47, skipping insertion in model container [2024-11-10 22:21:47,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:46" (2/3) ... [2024-11-10 22:21:47,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5811d415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:47, skipping insertion in model container [2024-11-10 22:21:47,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:21:47" (3/3) ... [2024-11-10 22:21:47,701 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2024-11-10 22:21:47,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:21:47,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-10 22:21:47,713 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:21:47,780 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:21:47,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 107 transitions, 235 flow [2024-11-10 22:21:47,851 INFO L124 PetriNetUnfolderBase]: 18/104 cut-off events. [2024-11-10 22:21:47,851 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:21:47,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 18/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 394 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2024-11-10 22:21:47,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 107 transitions, 235 flow [2024-11-10 22:21:47,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 102 transitions, 219 flow [2024-11-10 22:21:47,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:21:47,874 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;@656484e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:21:47,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-10 22:21:47,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:21:47,886 INFO L124 PetriNetUnfolderBase]: 8/45 cut-off events. [2024-11-10 22:21:47,886 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:21:47,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:47,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:47,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:47,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1019844643, now seen corresponding path program 1 times [2024-11-10 22:21:47,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:47,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821763232] [2024-11-10 22:21:47,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:47,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:48,139 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 22:21:48,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:48,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821763232] [2024-11-10 22:21:48,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821763232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:48,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:48,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:21:48,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038509811] [2024-11-10 22:21:48,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:48,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:48,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:48,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:48,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:48,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-10 22:21:48,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 22:21:48,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:48,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-10 22:21:48,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:49,848 INFO L124 PetriNetUnfolderBase]: 14059/22486 cut-off events. [2024-11-10 22:21:49,848 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-10 22:21:49,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 22486 events. 14059/22486 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 186259 event pairs, 5420 based on Foata normal form. 532/18958 useless extension candidates. Maximal degree in co-relation 40483. Up to 10138 conditions per place. [2024-11-10 22:21:49,994 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 100 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-11-10 22:21:49,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 159 transitions, 555 flow [2024-11-10 22:21:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2024-11-10 22:21:50,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7850467289719626 [2024-11-10 22:21:50,005 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 219 flow. Second operand 4 states and 336 transitions. [2024-11-10 22:21:50,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 159 transitions, 555 flow [2024-11-10 22:21:50,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:21:50,042 INFO L231 Difference]: Finished difference. Result has 94 places, 104 transitions, 244 flow [2024-11-10 22:21:50,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=104} [2024-11-10 22:21:50,047 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-10 22:21:50,047 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 244 flow [2024-11-10 22:21:50,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 22:21:50,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:50,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:50,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:21:50,048 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:50,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1550412222, now seen corresponding path program 1 times [2024-11-10 22:21:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411157807] [2024-11-10 22:21:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:21:50,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:50,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411157807] [2024-11-10 22:21:50,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411157807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:50,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:50,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307827415] [2024-11-10 22:21:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:50,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:50,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:50,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-10 22:21:50,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 22:21:50,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:50,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-10 22:21:50,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:51,372 INFO L124 PetriNetUnfolderBase]: 10585/19081 cut-off events. [2024-11-10 22:21:51,373 INFO L125 PetriNetUnfolderBase]: For 3423/3445 co-relation queries the response was YES. [2024-11-10 22:21:51,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36848 conditions, 19081 events. 10585/19081 cut-off events. For 3423/3445 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 175599 event pairs, 3367 based on Foata normal form. 22/16490 useless extension candidates. Maximal degree in co-relation 21643. Up to 7399 conditions per place. [2024-11-10 22:21:51,508 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 68 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2024-11-10 22:21:51,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 443 flow [2024-11-10 22:21:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2024-11-10 22:21:51,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7266355140186916 [2024-11-10 22:21:51,511 INFO L175 Difference]: Start difference. First operand has 94 places, 104 transitions, 244 flow. Second operand 4 states and 311 transitions. [2024-11-10 22:21:51,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 443 flow [2024-11-10 22:21:51,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:21:51,582 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 250 flow [2024-11-10 22:21:51,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2024-11-10 22:21:51,583 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2024-11-10 22:21:51,583 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 250 flow [2024-11-10 22:21:51,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 22:21:51,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:51,584 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:51,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:21:51,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:51,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1704975296, now seen corresponding path program 1 times [2024-11-10 22:21:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:51,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697557030] [2024-11-10 22:21:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:51,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:51,651 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 22:21:51,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:51,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697557030] [2024-11-10 22:21:51,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697557030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:51,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:51,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:51,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724389527] [2024-11-10 22:21:51,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:51,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:51,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:51,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:51,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-10 22:21:51,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 22:21:51,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:51,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-10 22:21:51,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:52,671 INFO L124 PetriNetUnfolderBase]: 10457/18631 cut-off events. [2024-11-10 22:21:52,671 INFO L125 PetriNetUnfolderBase]: For 5307/5822 co-relation queries the response was YES. [2024-11-10 22:21:52,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35999 conditions, 18631 events. 10457/18631 cut-off events. For 5307/5822 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 169522 event pairs, 3897 based on Foata normal form. 904/16052 useless extension candidates. Maximal degree in co-relation 22400. Up to 6904 conditions per place. [2024-11-10 22:21:52,783 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 71 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2024-11-10 22:21:52,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 477 flow [2024-11-10 22:21:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:52,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2024-11-10 22:21:52,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2024-11-10 22:21:52,786 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 250 flow. Second operand 4 states and 308 transitions. [2024-11-10 22:21:52,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 477 flow [2024-11-10 22:21:52,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 463 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:21:52,814 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 244 flow [2024-11-10 22:21:52,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2024-11-10 22:21:52,815 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-10 22:21:52,816 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 244 flow [2024-11-10 22:21:52,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 22:21:52,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:52,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:21:52,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:52,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash -818168735, now seen corresponding path program 1 times [2024-11-10 22:21:52,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:52,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118435427] [2024-11-10 22:21:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:52,864 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 22:21:52,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:52,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118435427] [2024-11-10 22:21:52,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118435427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:52,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:52,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926595698] [2024-11-10 22:21:52,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:52,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:52,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:52,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:52,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:52,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-10 22:21:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 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 22:21:52,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:52,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-10 22:21:52,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:53,930 INFO L124 PetriNetUnfolderBase]: 10607/18849 cut-off events. [2024-11-10 22:21:53,930 INFO L125 PetriNetUnfolderBase]: For 4869/4891 co-relation queries the response was YES. [2024-11-10 22:21:53,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37310 conditions, 18849 events. 10607/18849 cut-off events. For 4869/4891 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 170729 event pairs, 3367 based on Foata normal form. 288/16829 useless extension candidates. Maximal degree in co-relation 22064. Up to 7665 conditions per place. [2024-11-10 22:21:54,052 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-11-10 22:21:54,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 127 transitions, 447 flow [2024-11-10 22:21:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2024-11-10 22:21:54,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-11-10 22:21:54,054 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 244 flow. Second operand 4 states and 307 transitions. [2024-11-10 22:21:54,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 127 transitions, 447 flow [2024-11-10 22:21:54,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 437 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:21:54,108 INFO L231 Difference]: Finished difference. Result has 93 places, 100 transitions, 242 flow [2024-11-10 22:21:54,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=100} [2024-11-10 22:21:54,108 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2024-11-10 22:21:54,109 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 100 transitions, 242 flow [2024-11-10 22:21:54,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 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 22:21:54,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:54,109 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:54,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:21:54,109 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1314625954, now seen corresponding path program 1 times [2024-11-10 22:21:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:54,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975589607] [2024-11-10 22:21:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:54,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:54,178 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 22:21:54,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:54,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975589607] [2024-11-10 22:21:54,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975589607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:54,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:54,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:54,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49363473] [2024-11-10 22:21:54,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:54,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:54,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:54,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:54,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-10 22:21:54,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 100 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 22:21:54,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:54,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-10 22:21:54,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:55,077 INFO L124 PetriNetUnfolderBase]: 8675/16503 cut-off events. [2024-11-10 22:21:55,077 INFO L125 PetriNetUnfolderBase]: For 4325/4535 co-relation queries the response was YES. [2024-11-10 22:21:55,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30814 conditions, 16503 events. 8675/16503 cut-off events. For 4325/4535 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 156182 event pairs, 3853 based on Foata normal form. 210/13930 useless extension candidates. Maximal degree in co-relation 19157. Up to 6904 conditions per place. [2024-11-10 22:21:55,160 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-11-10 22:21:55,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 467 flow [2024-11-10 22:21:55,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-11-10 22:21:55,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-11-10 22:21:55,161 INFO L175 Difference]: Start difference. First operand has 93 places, 100 transitions, 242 flow. Second operand 4 states and 309 transitions. [2024-11-10 22:21:55,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 467 flow [2024-11-10 22:21:55,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:21:55,183 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 238 flow [2024-11-10 22:21:55,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2024-11-10 22:21:55,184 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-11-10 22:21:55,184 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 238 flow [2024-11-10 22:21:55,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 22:21:55,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:55,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:55,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:21:55,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:55,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:55,186 INFO L85 PathProgramCache]: Analyzing trace with hash 406572644, now seen corresponding path program 1 times [2024-11-10 22:21:55,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:55,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008306595] [2024-11-10 22:21:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:55,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:55,259 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 22:21:55,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:55,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008306595] [2024-11-10 22:21:55,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008306595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:55,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:55,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:21:55,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983722635] [2024-11-10 22:21:55,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:55,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:21:55,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:21:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:21:55,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-10 22:21:55,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 22:21:55,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:55,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-10 22:21:55,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:56,346 INFO L124 PetriNetUnfolderBase]: 14252/22265 cut-off events. [2024-11-10 22:21:56,346 INFO L125 PetriNetUnfolderBase]: For 2755/2755 co-relation queries the response was YES. [2024-11-10 22:21:56,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45808 conditions, 22265 events. 14252/22265 cut-off events. For 2755/2755 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 180469 event pairs, 3279 based on Foata normal form. 0/20291 useless extension candidates. Maximal degree in co-relation 27416. Up to 9347 conditions per place. [2024-11-10 22:21:56,474 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 96 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-11-10 22:21:56,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 562 flow [2024-11-10 22:21:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:21:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:21:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2024-11-10 22:21:56,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7327102803738318 [2024-11-10 22:21:56,476 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 238 flow. Second operand 5 states and 392 transitions. [2024-11-10 22:21:56,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 562 flow [2024-11-10 22:21:56,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:21:56,536 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 242 flow [2024-11-10 22:21:56,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2024-11-10 22:21:56,536 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-11-10 22:21:56,537 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 98 transitions, 242 flow [2024-11-10 22:21:56,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 22:21:56,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:56,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:56,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:21:56,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:56,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 406573637, now seen corresponding path program 1 times [2024-11-10 22:21:56,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:56,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188638931] [2024-11-10 22:21:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:56,577 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 22:21:56,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:56,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188638931] [2024-11-10 22:21:56,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188638931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:56,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:56,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:21:56,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308644888] [2024-11-10 22:21:56,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:56,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:56,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:56,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-10 22:21:56,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 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 22:21:56,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:56,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-10 22:21:56,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:57,909 INFO L124 PetriNetUnfolderBase]: 11720/19787 cut-off events. [2024-11-10 22:21:57,910 INFO L125 PetriNetUnfolderBase]: For 6303/6303 co-relation queries the response was YES. [2024-11-10 22:21:57,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40012 conditions, 19787 events. 11720/19787 cut-off events. For 6303/6303 co-relation queries the response was YES. Maximal size of possible extension queue 1240. Compared 171915 event pairs, 5591 based on Foata normal form. 266/17517 useless extension candidates. Maximal degree in co-relation 23802. Up to 10172 conditions per place. [2024-11-10 22:21:57,984 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 98 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-11-10 22:21:57,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 556 flow [2024-11-10 22:21:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-10 22:21:57,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7733644859813084 [2024-11-10 22:21:57,986 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 242 flow. Second operand 4 states and 331 transitions. [2024-11-10 22:21:57,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 556 flow [2024-11-10 22:21:58,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 152 transitions, 544 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:21:58,020 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 232 flow [2024-11-10 22:21:58,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2024-11-10 22:21:58,021 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2024-11-10 22:21:58,021 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 232 flow [2024-11-10 22:21:58,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 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 22:21:58,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:58,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:58,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:21:58,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:58,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:58,022 INFO L85 PathProgramCache]: Analyzing trace with hash -756599228, now seen corresponding path program 1 times [2024-11-10 22:21:58,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:58,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991097291] [2024-11-10 22:21:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:58,058 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 22:21:58,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991097291] [2024-11-10 22:21:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991097291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:58,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:58,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371360470] [2024-11-10 22:21:58,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:58,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:58,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:58,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:58,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-10 22:21:58,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 22:21:58,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:58,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-10 22:21:58,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:58,756 INFO L124 PetriNetUnfolderBase]: 10807/18575 cut-off events. [2024-11-10 22:21:58,756 INFO L125 PetriNetUnfolderBase]: For 4563/4825 co-relation queries the response was YES. [2024-11-10 22:21:58,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35957 conditions, 18575 events. 10807/18575 cut-off events. For 4563/4825 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 162814 event pairs, 4342 based on Foata normal form. 858/16462 useless extension candidates. Maximal degree in co-relation 22598. Up to 7748 conditions per place. [2024-11-10 22:21:58,853 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 70 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2024-11-10 22:21:58,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 122 transitions, 453 flow [2024-11-10 22:21:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2024-11-10 22:21:58,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-11-10 22:21:58,854 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 232 flow. Second operand 4 states and 307 transitions. [2024-11-10 22:21:58,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 122 transitions, 453 flow [2024-11-10 22:21:58,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 122 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:21:58,877 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 228 flow [2024-11-10 22:21:58,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2024-11-10 22:21:58,880 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2024-11-10 22:21:58,880 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 228 flow [2024-11-10 22:21:58,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 22:21:58,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:58,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:58,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:21:58,883 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:21:58,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash -281149276, now seen corresponding path program 1 times [2024-11-10 22:21:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:58,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903821169] [2024-11-10 22:21:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:58,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:58,953 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 22:21:58,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903821169] [2024-11-10 22:21:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903821169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:58,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:58,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:21:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410604747] [2024-11-10 22:21:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:58,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:21:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:21:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:21:58,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-10 22:21:58,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 22:21:58,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:58,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-10 22:21:58,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:00,163 INFO L124 PetriNetUnfolderBase]: 13986/21547 cut-off events. [2024-11-10 22:22:00,164 INFO L125 PetriNetUnfolderBase]: For 4327/4349 co-relation queries the response was YES. [2024-11-10 22:22:00,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44423 conditions, 21547 events. 13986/21547 cut-off events. For 4327/4349 co-relation queries the response was YES. Maximal size of possible extension queue 1408. Compared 171602 event pairs, 3257 based on Foata normal form. 554/20158 useless extension candidates. Maximal degree in co-relation 25389. Up to 6227 conditions per place. [2024-11-10 22:22:00,282 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 120 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2024-11-10 22:22:00,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 176 transitions, 669 flow [2024-11-10 22:22:00,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-11-10 22:22:00,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835 [2024-11-10 22:22:00,284 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 228 flow. Second operand 6 states and 458 transitions. [2024-11-10 22:22:00,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 176 transitions, 669 flow [2024-11-10 22:22:00,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 176 transitions, 651 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:00,332 INFO L231 Difference]: Finished difference. Result has 92 places, 95 transitions, 247 flow [2024-11-10 22:22:00,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=92, PETRI_TRANSITIONS=95} [2024-11-10 22:22:00,332 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-11-10 22:22:00,332 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 95 transitions, 247 flow [2024-11-10 22:22:00,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 22:22:00,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:00,333 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:00,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:22:00,333 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:00,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -636088511, now seen corresponding path program 1 times [2024-11-10 22:22:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:00,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336281350] [2024-11-10 22:22:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:00,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:00,369 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 22:22:00,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:00,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336281350] [2024-11-10 22:22:00,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336281350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:00,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:00,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:00,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939309476] [2024-11-10 22:22:00,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:00,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:00,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:00,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:00,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:00,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-10 22:22:00,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 22:22:00,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:00,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-10 22:22:00,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:01,989 INFO L124 PetriNetUnfolderBase]: 14167/24837 cut-off events. [2024-11-10 22:22:01,990 INFO L125 PetriNetUnfolderBase]: For 14530/15612 co-relation queries the response was YES. [2024-11-10 22:22:02,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50716 conditions, 24837 events. 14167/24837 cut-off events. For 14530/15612 co-relation queries the response was YES. Maximal size of possible extension queue 1479. Compared 229506 event pairs, 6696 based on Foata normal form. 900/21902 useless extension candidates. Maximal degree in co-relation 31070. Up to 11994 conditions per place. [2024-11-10 22:22:02,154 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 105 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-10 22:22:02,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 157 transitions, 667 flow [2024-11-10 22:22:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2024-11-10 22:22:02,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710280373831776 [2024-11-10 22:22:02,155 INFO L175 Difference]: Start difference. First operand has 92 places, 95 transitions, 247 flow. Second operand 4 states and 330 transitions. [2024-11-10 22:22:02,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 157 transitions, 667 flow [2024-11-10 22:22:02,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 157 transitions, 636 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:02,248 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 261 flow [2024-11-10 22:22:02,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=93, PETRI_TRANSITIONS=97} [2024-11-10 22:22:02,249 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2024-11-10 22:22:02,249 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 261 flow [2024-11-10 22:22:02,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 22:22:02,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:02,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:02,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:22:02,250 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:02,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash -636089504, now seen corresponding path program 1 times [2024-11-10 22:22:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857995648] [2024-11-10 22:22:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:02,301 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 22:22:02,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:02,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857995648] [2024-11-10 22:22:02,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857995648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:02,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:02,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624723791] [2024-11-10 22:22:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:02,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:02,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:02,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:02,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-10 22:22:02,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 97 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 22:22:02,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:02,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-10 22:22:02,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:04,057 INFO L124 PetriNetUnfolderBase]: 16877/26759 cut-off events. [2024-11-10 22:22:04,057 INFO L125 PetriNetUnfolderBase]: For 12885/14325 co-relation queries the response was YES. [2024-11-10 22:22:04,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59122 conditions, 26759 events. 16877/26759 cut-off events. For 12885/14325 co-relation queries the response was YES. Maximal size of possible extension queue 1615. Compared 224368 event pairs, 3854 based on Foata normal form. 1142/25780 useless extension candidates. Maximal degree in co-relation 38825. Up to 11572 conditions per place. [2024-11-10 22:22:04,239 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 104 selfloop transitions, 6 changer transitions 0/155 dead transitions. [2024-11-10 22:22:04,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 155 transitions, 655 flow [2024-11-10 22:22:04,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2024-11-10 22:22:04,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2024-11-10 22:22:04,241 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 261 flow. Second operand 5 states and 390 transitions. [2024-11-10 22:22:04,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 155 transitions, 655 flow [2024-11-10 22:22:04,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 155 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:04,402 INFO L231 Difference]: Finished difference. Result has 96 places, 97 transitions, 275 flow [2024-11-10 22:22:04,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=96, PETRI_TRANSITIONS=97} [2024-11-10 22:22:04,405 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2024-11-10 22:22:04,405 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 97 transitions, 275 flow [2024-11-10 22:22:04,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 22:22:04,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:04,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:04,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:22:04,405 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:04,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:04,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1979738887, now seen corresponding path program 1 times [2024-11-10 22:22:04,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:04,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065107045] [2024-11-10 22:22:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:04,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:04,458 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 22:22:04,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:04,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065107045] [2024-11-10 22:22:04,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065107045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:04,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:04,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354639040] [2024-11-10 22:22:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:04,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:04,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-10 22:22:04,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 97 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 22:22:04,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:04,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-10 22:22:04,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:05,404 INFO L124 PetriNetUnfolderBase]: 10926/20443 cut-off events. [2024-11-10 22:22:05,404 INFO L125 PetriNetUnfolderBase]: For 11953/13000 co-relation queries the response was YES. [2024-11-10 22:22:05,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42739 conditions, 20443 events. 10926/20443 cut-off events. For 11953/13000 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 195350 event pairs, 5190 based on Foata normal form. 873/18928 useless extension candidates. Maximal degree in co-relation 29433. Up to 9311 conditions per place. [2024-11-10 22:22:05,502 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 76 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-11-10 22:22:05,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 127 transitions, 549 flow [2024-11-10 22:22:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2024-11-10 22:22:05,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2024-11-10 22:22:05,503 INFO L175 Difference]: Start difference. First operand has 96 places, 97 transitions, 275 flow. Second operand 4 states and 308 transitions. [2024-11-10 22:22:05,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 127 transitions, 549 flow [2024-11-10 22:22:05,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 127 transitions, 534 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:05,536 INFO L231 Difference]: Finished difference. Result has 95 places, 96 transitions, 270 flow [2024-11-10 22:22:05,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2024-11-10 22:22:05,536 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2024-11-10 22:22:05,536 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 270 flow [2024-11-10 22:22:05,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 22:22:05,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:05,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:05,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:22:05,537 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:05,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash 792996619, now seen corresponding path program 1 times [2024-11-10 22:22:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832330398] [2024-11-10 22:22:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:05,583 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 22:22:05,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:05,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832330398] [2024-11-10 22:22:05,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832330398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:05,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:05,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:05,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518456016] [2024-11-10 22:22:05,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:05,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:05,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:05,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:05,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:05,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-10 22:22:05,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 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 22:22:05,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:05,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-10 22:22:05,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:06,711 INFO L124 PetriNetUnfolderBase]: 16726/26282 cut-off events. [2024-11-10 22:22:06,711 INFO L125 PetriNetUnfolderBase]: For 14881/15660 co-relation queries the response was YES. [2024-11-10 22:22:06,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59626 conditions, 26282 events. 16726/26282 cut-off events. For 14881/15660 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 217400 event pairs, 6616 based on Foata normal form. 1013/25190 useless extension candidates. Maximal degree in co-relation 41026. Up to 12435 conditions per place. [2024-11-10 22:22:06,876 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 106 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-10 22:22:06,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 156 transitions, 669 flow [2024-11-10 22:22:06,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:06,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2024-11-10 22:22:06,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467 [2024-11-10 22:22:06,878 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 270 flow. Second operand 4 states and 329 transitions. [2024-11-10 22:22:06,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 156 transitions, 669 flow [2024-11-10 22:22:06,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 652 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:06,953 INFO L231 Difference]: Finished difference. Result has 94 places, 96 transitions, 274 flow [2024-11-10 22:22:06,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2024-11-10 22:22:06,954 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-10 22:22:06,954 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 274 flow [2024-11-10 22:22:06,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 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 22:22:06,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:06,954 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:06,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:22:06,954 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:06,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1756062535, now seen corresponding path program 1 times [2024-11-10 22:22:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:06,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488294761] [2024-11-10 22:22:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:06,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:07,021 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 22:22:07,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:07,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488294761] [2024-11-10 22:22:07,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488294761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:07,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:07,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:07,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842718134] [2024-11-10 22:22:07,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:07,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:07,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:07,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:07,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:07,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-10 22:22:07,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 22:22:07,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:07,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-10 22:22:07,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:08,293 INFO L124 PetriNetUnfolderBase]: 18085/28125 cut-off events. [2024-11-10 22:22:08,293 INFO L125 PetriNetUnfolderBase]: For 21412/22576 co-relation queries the response was YES. [2024-11-10 22:22:08,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66304 conditions, 28125 events. 18085/28125 cut-off events. For 21412/22576 co-relation queries the response was YES. Maximal size of possible extension queue 1674. Compared 230918 event pairs, 4142 based on Foata normal form. 1858/27707 useless extension candidates. Maximal degree in co-relation 53409. Up to 7779 conditions per place. [2024-11-10 22:22:08,467 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 134 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2024-11-10 22:22:08,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 186 transitions, 860 flow [2024-11-10 22:22:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2024-11-10 22:22:08,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7087227414330218 [2024-11-10 22:22:08,469 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 274 flow. Second operand 6 states and 455 transitions. [2024-11-10 22:22:08,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 186 transitions, 860 flow [2024-11-10 22:22:08,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 186 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:08,585 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 295 flow [2024-11-10 22:22:08,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2024-11-10 22:22:08,586 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2024-11-10 22:22:08,586 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 295 flow [2024-11-10 22:22:08,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 22:22:08,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:08,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:08,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:22:08,586 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:08,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -477946649, now seen corresponding path program 1 times [2024-11-10 22:22:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:08,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337409415] [2024-11-10 22:22:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:08,639 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 22:22:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337409415] [2024-11-10 22:22:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337409415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:08,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:22:08,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939217952] [2024-11-10 22:22:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:08,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:08,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-10 22:22:08,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 22:22:08,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:08,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-10 22:22:08,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:09,902 INFO L124 PetriNetUnfolderBase]: 17679/26958 cut-off events. [2024-11-10 22:22:09,903 INFO L125 PetriNetUnfolderBase]: For 20624/21740 co-relation queries the response was YES. [2024-11-10 22:22:09,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66852 conditions, 26958 events. 17679/26958 cut-off events. For 20624/21740 co-relation queries the response was YES. Maximal size of possible extension queue 1617. Compared 215325 event pairs, 7210 based on Foata normal form. 1463/26380 useless extension candidates. Maximal degree in co-relation 54061. Up to 13239 conditions per place. [2024-11-10 22:22:10,068 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 167 selfloop transitions, 8 changer transitions 0/216 dead transitions. [2024-11-10 22:22:10,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 216 transitions, 1025 flow [2024-11-10 22:22:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:10,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2024-11-10 22:22:10,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2024-11-10 22:22:10,070 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 295 flow. Second operand 6 states and 486 transitions. [2024-11-10 22:22:10,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 216 transitions, 1025 flow [2024-11-10 22:22:10,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 216 transitions, 1007 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-10 22:22:10,280 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 300 flow [2024-11-10 22:22:10,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-10 22:22:10,280 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-11-10 22:22:10,280 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 300 flow [2024-11-10 22:22:10,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 22:22:10,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:10,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:10,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:22:10,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:10,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash 140509979, now seen corresponding path program 1 times [2024-11-10 22:22:10,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:10,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251266370] [2024-11-10 22:22:10,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:10,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:10,326 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 22:22:10,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251266370] [2024-11-10 22:22:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251266370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:10,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:10,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:10,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532702684] [2024-11-10 22:22:10,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:10,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:10,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:10,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:10,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:10,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-10 22:22:10,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 300 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 22:22:10,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:10,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-10 22:22:10,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:11,536 INFO L124 PetriNetUnfolderBase]: 16646/25966 cut-off events. [2024-11-10 22:22:11,536 INFO L125 PetriNetUnfolderBase]: For 31611/33684 co-relation queries the response was YES. [2024-11-10 22:22:11,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63997 conditions, 25966 events. 16646/25966 cut-off events. For 31611/33684 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 212336 event pairs, 5615 based on Foata normal form. 2073/25645 useless extension candidates. Maximal degree in co-relation 51938. Up to 9812 conditions per place. [2024-11-10 22:22:11,699 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 116 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2024-11-10 22:22:11,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 162 transitions, 826 flow [2024-11-10 22:22:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2024-11-10 22:22:11,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252336448598131 [2024-11-10 22:22:11,701 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 300 flow. Second operand 5 states and 388 transitions. [2024-11-10 22:22:11,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 162 transitions, 826 flow [2024-11-10 22:22:11,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 162 transitions, 801 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:11,749 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 306 flow [2024-11-10 22:22:11,749 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2024-11-10 22:22:11,750 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 7 predicate places. [2024-11-10 22:22:11,750 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 306 flow [2024-11-10 22:22:11,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 22:22:11,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:11,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:11,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:22:11,750 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:11,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:11,751 INFO L85 PathProgramCache]: Analyzing trace with hash 140510972, now seen corresponding path program 1 times [2024-11-10 22:22:11,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:11,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262276193] [2024-11-10 22:22:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:11,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:11,793 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 22:22:11,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:11,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262276193] [2024-11-10 22:22:11,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262276193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:11,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:11,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:11,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491044571] [2024-11-10 22:22:11,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:11,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:11,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:11,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:11,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:11,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-10 22:22:11,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 22:22:11,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:11,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-10 22:22:11,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:13,268 INFO L124 PetriNetUnfolderBase]: 18071/30205 cut-off events. [2024-11-10 22:22:13,268 INFO L125 PetriNetUnfolderBase]: For 31737/33924 co-relation queries the response was YES. [2024-11-10 22:22:13,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72304 conditions, 30205 events. 18071/30205 cut-off events. For 31737/33924 co-relation queries the response was YES. Maximal size of possible extension queue 1649. Compared 270543 event pairs, 9143 based on Foata normal form. 2187/30135 useless extension candidates. Maximal degree in co-relation 58852. Up to 15891 conditions per place. [2024-11-10 22:22:13,432 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 118 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-11-10 22:22:13,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 165 transitions, 828 flow [2024-11-10 22:22:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2024-11-10 22:22:13,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7663551401869159 [2024-11-10 22:22:13,434 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 306 flow. Second operand 4 states and 328 transitions. [2024-11-10 22:22:13,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 165 transitions, 828 flow [2024-11-10 22:22:13,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 165 transitions, 819 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:13,474 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 326 flow [2024-11-10 22:22:13,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2024-11-10 22:22:13,475 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-10 22:22:13,475 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 326 flow [2024-11-10 22:22:13,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 22:22:13,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:13,475 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 22:22:13,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:22:13,475 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:13,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash 60842763, now seen corresponding path program 1 times [2024-11-10 22:22:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:13,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643075921] [2024-11-10 22:22:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:13,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:13,530 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 22:22:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643075921] [2024-11-10 22:22:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643075921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:13,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:22:13,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484577348] [2024-11-10 22:22:13,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:13,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:13,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:13,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:22:13,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-10 22:22:13,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 22:22:13,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:13,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-10 22:22:13,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:15,143 INFO L124 PetriNetUnfolderBase]: 21212/32800 cut-off events. [2024-11-10 22:22:15,143 INFO L125 PetriNetUnfolderBase]: For 41129/43862 co-relation queries the response was YES. [2024-11-10 22:22:15,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84353 conditions, 32800 events. 21212/32800 cut-off events. For 41129/43862 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 271042 event pairs, 5615 based on Foata normal form. 3489/34414 useless extension candidates. Maximal degree in co-relation 68744. Up to 10190 conditions per place. [2024-11-10 22:22:15,374 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 147 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2024-11-10 22:22:15,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 197 transitions, 1040 flow [2024-11-10 22:22:15,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2024-11-10 22:22:15,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040498442367601 [2024-11-10 22:22:15,375 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 326 flow. Second operand 6 states and 452 transitions. [2024-11-10 22:22:15,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 197 transitions, 1040 flow [2024-11-10 22:22:15,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 197 transitions, 1037 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:15,551 INFO L231 Difference]: Finished difference. Result has 107 places, 98 transitions, 348 flow [2024-11-10 22:22:15,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=107, PETRI_TRANSITIONS=98} [2024-11-10 22:22:15,551 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2024-11-10 22:22:15,552 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 98 transitions, 348 flow [2024-11-10 22:22:15,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 22:22:15,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:15,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:15,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:22:15,552 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-10 22:22:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1490151998, now seen corresponding path program 1 times [2024-11-10 22:22:15,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:15,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449649165] [2024-11-10 22:22:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:15,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:15,590 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 22:22:15,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:15,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449649165] [2024-11-10 22:22:15,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449649165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:15,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:15,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:22:15,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268129845] [2024-11-10 22:22:15,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:15,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:15,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:15,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:15,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:15,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-10 22:22:15,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 98 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 22:22:15,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:15,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-10 22:22:15,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:17,282 INFO L124 PetriNetUnfolderBase]: 20834/31454 cut-off events. [2024-11-10 22:22:17,282 INFO L125 PetriNetUnfolderBase]: For 43552/46234 co-relation queries the response was YES. [2024-11-10 22:22:17,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86132 conditions, 31454 events. 20834/31454 cut-off events. For 43552/46234 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 252406 event pairs, 9143 based on Foata normal form. 3060/33389 useless extension candidates. Maximal degree in co-relation 70213. Up to 16269 conditions per place. [2024-11-10 22:22:17,406 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 0 selfloop transitions, 0 changer transitions 230/230 dead transitions. [2024-11-10 22:22:17,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 230 transitions, 1262 flow [2024-11-10 22:22:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2024-11-10 22:22:17,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7507788161993769 [2024-11-10 22:22:17,408 INFO L175 Difference]: Start difference. First operand has 107 places, 98 transitions, 348 flow. Second operand 6 states and 482 transitions. [2024-11-10 22:22:17,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 230 transitions, 1262 flow [2024-11-10 22:22:17,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 230 transitions, 1244 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-10 22:22:17,666 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2024-11-10 22:22:17,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2024-11-10 22:22:17,666 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2024-11-10 22:22:17,666 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2024-11-10 22:22:17,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-10 22:22:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-10 22:22:17,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-10 22:22:17,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-10 22:22:17,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:22:17,672 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] [2024-11-10 22:22:17,677 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:22:17,677 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:22:17,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:22:17 BasicIcfg [2024-11-10 22:22:17,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:22:17,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:22:17,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:22:17,683 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:22:17,684 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:21:47" (3/4) ... [2024-11-10 22:22:17,685 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:22:17,686 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:22:17,687 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:22:17,687 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-10 22:22:17,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2024-11-10 22:22:17,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-10 22:22:17,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-10 22:22:17,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 22:22:17,753 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:22:17,754 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:22:17,754 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:22:17,754 INFO L158 Benchmark]: Toolchain (without parser) took 31108.09ms. Allocated memory was 165.7MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 95.4MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-10 22:22:17,754 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 165.7MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.85ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.02ms. Allocated memory is still 165.7MB. Free memory was 81.7MB in the beginning and 79.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: Boogie Preprocessor took 109.78ms. Allocated memory is still 165.7MB. Free memory was 79.3MB in the beginning and 134.3MB in the end (delta: -55.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: IcfgBuilder took 625.06ms. Allocated memory is still 165.7MB. Free memory was 134.3MB in the beginning and 77.7MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: TraceAbstraction took 29985.99ms. Allocated memory was 165.7MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 77.1MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2024-11-10 22:22:17,755 INFO L158 Benchmark]: Witness Printer took 70.78ms. Allocated memory is still 5.2GB. Free memory was 4.0GB in the beginning and 4.0GB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:22:17,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 165.7MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.85ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.02ms. Allocated memory is still 165.7MB. Free memory was 81.7MB in the beginning and 79.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.78ms. Allocated memory is still 165.7MB. Free memory was 79.3MB in the beginning and 134.3MB in the end (delta: -55.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * IcfgBuilder took 625.06ms. Allocated memory is still 165.7MB. Free memory was 134.3MB in the beginning and 77.7MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 29985.99ms. Allocated memory was 165.7MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 77.1MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 70.78ms. Allocated memory is still 5.2GB. Free memory was 4.0GB in the beginning and 4.0GB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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 7 procedures, 171 locations, 39 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: 29.9s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2129 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1860 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4277 IncrementalHoareTripleChecker+Invalid, 4374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 87 mSDtfsCounter, 4277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=18, InterpolantAutomatonStates: 89, 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, 0.9s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:22:17,783 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