./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-exp-term-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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:08:03,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:08:03,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:08:03,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:08:03,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:08:03,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:08:03,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:08:03,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:08:03,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:08:03,320 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:08:03,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:08:03,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:08:03,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:08:03,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:08:03,321 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:08:03,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:08:03,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:08:03,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:08:03,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:08:03,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:08:03,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:08:03,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:08:03,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:08:03,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:08:03,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:08:03,327 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:08:03,327 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:08:03,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:08:03,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:08:03,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:08:03,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:08:03,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:08:03,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:08:03,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:08:03,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:03,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:08:03,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:08:03,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:08:03,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:08:03,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:08:03,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:08:03,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:08:03,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:08:03,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:08:03,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2024-11-09 15:08:03,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:08:03,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:08:03,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:08:03,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:08:03,604 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:08:03,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-09 15:08:04,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:08:05,086 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:08:05,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-09 15:08:05,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cd6de75b/eddd949b7a6d43ddb9c890e74f92dd3b/FLAGe80b7606b [2024-11-09 15:08:05,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cd6de75b/eddd949b7a6d43ddb9c890e74f92dd3b [2024-11-09 15:08:05,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:08:05,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:08:05,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:05,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:08:05,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:08:05,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d10db83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05, skipping insertion in model container [2024-11-09 15:08:05,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:08:05,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:05,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:08:05,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:05,715 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:08:05,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05 WrapperNode [2024-11-09 15:08:05,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:05,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:05,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:08:05,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:08:05,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,758 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2024-11-09 15:08:05,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:05,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:08:05,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:08:05,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:08:05,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,786 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 15:08:05,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:08:05,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:08:05,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:08:05,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:08:05,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (1/1) ... [2024-11-09 15:08:05,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:05,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:08:05,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:08:05,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:08:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:08:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:08:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:08:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:08:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:08:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:08:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:08:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:08:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:08:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:08:05,881 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:08:05,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:08:05,973 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:08:06,309 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:08:06,309 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:08:06,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:08:06,504 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 15:08:06,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:06 BoogieIcfgContainer [2024-11-09 15:08:06,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:08:06,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:08:06,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:08:06,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:08:06,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:08:05" (1/3) ... [2024-11-09 15:08:06,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c502ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:06, skipping insertion in model container [2024-11-09 15:08:06,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:05" (2/3) ... [2024-11-09 15:08:06,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c502ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:06, skipping insertion in model container [2024-11-09 15:08:06,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:06" (3/3) ... [2024-11-09 15:08:06,514 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-11-09 15:08:06,529 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:08:06,529 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 15:08:06,530 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:08:06,611 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:08:06,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 217 flow [2024-11-09 15:08:06,680 INFO L124 PetriNetUnfolderBase]: 15/95 cut-off events. [2024-11-09 15:08:06,680 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:08:06,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 15/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 350 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-11-09 15:08:06,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 217 flow [2024-11-09 15:08:06,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 93 transitions, 201 flow [2024-11-09 15:08:06,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:08:06,721 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;@3167f1b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:08:06,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-09 15:08:06,743 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:08:06,744 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-09 15:08:06,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:08:06,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:06,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:06,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:06,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:06,751 INFO L85 PathProgramCache]: Analyzing trace with hash 107540757, now seen corresponding path program 1 times [2024-11-09 15:08:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:06,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746278352] [2024-11-09 15:08:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:06,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:07,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:07,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746278352] [2024-11-09 15:08:07,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746278352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:07,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:07,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171011651] [2024-11-09 15:08:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:07,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:07,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:07,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:07,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:07,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:07,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:07,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:07,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:08,556 INFO L124 PetriNetUnfolderBase]: 11126/17819 cut-off events. [2024-11-09 15:08:08,557 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2024-11-09 15:08:08,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32962 conditions, 17819 events. 11126/17819 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 141566 event pairs, 3987 based on Foata normal form. 444/15003 useless extension candidates. Maximal degree in co-relation 32117. Up to 7687 conditions per place. [2024-11-09 15:08:08,686 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 93 selfloop transitions, 5 changer transitions 0/146 dead transitions. [2024-11-09 15:08:08,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 515 flow [2024-11-09 15:08:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:08,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-09 15:08:08,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780612244897959 [2024-11-09 15:08:08,698 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 201 flow. Second operand 4 states and 305 transitions. [2024-11-09 15:08:08,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 515 flow [2024-11-09 15:08:08,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 146 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:08:08,712 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 226 flow [2024-11-09 15:08:08,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2024-11-09 15:08:08,719 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-11-09 15:08:08,720 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 226 flow [2024-11-09 15:08:08,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:08,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:08,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:08,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:08:08,721 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:08,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash -961203097, now seen corresponding path program 1 times [2024-11-09 15:08:08,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:08,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637332864] [2024-11-09 15:08:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:08,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:08,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:08,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637332864] [2024-11-09 15:08:08,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637332864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:08,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:08,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325902486] [2024-11-09 15:08:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:08,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:08,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:08,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:08,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-09 15:08:08,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:08,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:08,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-09 15:08:08,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:09,947 INFO L124 PetriNetUnfolderBase]: 8257/14973 cut-off events. [2024-11-09 15:08:09,948 INFO L125 PetriNetUnfolderBase]: For 2854/2874 co-relation queries the response was YES. [2024-11-09 15:08:09,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29073 conditions, 14973 events. 8257/14973 cut-off events. For 2854/2874 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 132562 event pairs, 2320 based on Foata normal form. 20/12961 useless extension candidates. Maximal degree in co-relation 16338. Up to 6222 conditions per place. [2024-11-09 15:08:10,049 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 63 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-09 15:08:10,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 411 flow [2024-11-09 15:08:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-11-09 15:08:10,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7193877551020408 [2024-11-09 15:08:10,051 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 226 flow. Second operand 4 states and 282 transitions. [2024-11-09 15:08:10,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 411 flow [2024-11-09 15:08:10,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:08:10,105 INFO L231 Difference]: Finished difference. Result has 90 places, 94 transitions, 232 flow [2024-11-09 15:08:10,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=90, PETRI_TRANSITIONS=94} [2024-11-09 15:08:10,106 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-11-09 15:08:10,106 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 94 transitions, 232 flow [2024-11-09 15:08:10,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:10,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:10,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:10,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:08:10,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -476424384, now seen corresponding path program 1 times [2024-11-09 15:08:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678419790] [2024-11-09 15:08:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:10,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:10,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678419790] [2024-11-09 15:08:10,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678419790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:10,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:10,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:10,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879570814] [2024-11-09 15:08:10,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:10,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:10,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:10,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:10,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 94 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:10,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:10,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:10,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:11,628 INFO L124 PetriNetUnfolderBase]: 13404/22500 cut-off events. [2024-11-09 15:08:11,628 INFO L125 PetriNetUnfolderBase]: For 7387/8100 co-relation queries the response was YES. [2024-11-09 15:08:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45221 conditions, 22500 events. 13404/22500 cut-off events. For 7387/8100 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 194633 event pairs, 4867 based on Foata normal form. 905/19695 useless extension candidates. Maximal degree in co-relation 26814. Up to 9225 conditions per place. [2024-11-09 15:08:11,789 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-11-09 15:08:11,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 149 transitions, 600 flow [2024-11-09 15:08:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:11,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:11,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-11-09 15:08:11,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729591836734694 [2024-11-09 15:08:11,792 INFO L175 Difference]: Start difference. First operand has 90 places, 94 transitions, 232 flow. Second operand 4 states and 303 transitions. [2024-11-09 15:08:11,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 149 transitions, 600 flow [2024-11-09 15:08:11,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 149 transitions, 580 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:11,854 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 258 flow [2024-11-09 15:08:11,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2024-11-09 15:08:11,855 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-09 15:08:11,855 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 258 flow [2024-11-09 15:08:11,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:11,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:11,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:11,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:08:11,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:11,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash 267444025, now seen corresponding path program 1 times [2024-11-09 15:08:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285612059] [2024-11-09 15:08:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:11,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:11,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285612059] [2024-11-09 15:08:11,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285612059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:11,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:11,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028248301] [2024-11-09 15:08:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:11,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:11,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:11,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:11,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-09 15:08:11,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:11,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:11,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-09 15:08:11,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:12,967 INFO L124 PetriNetUnfolderBase]: 9856/18358 cut-off events. [2024-11-09 15:08:12,967 INFO L125 PetriNetUnfolderBase]: For 7482/8010 co-relation queries the response was YES. [2024-11-09 15:08:13,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37855 conditions, 18358 events. 9856/18358 cut-off events. For 7482/8010 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 170608 event pairs, 2826 based on Foata normal form. 542/16641 useless extension candidates. Maximal degree in co-relation 22936. Up to 7650 conditions per place. [2024-11-09 15:08:13,226 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 68 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-09 15:08:13,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 473 flow [2024-11-09 15:08:13,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-09 15:08:13,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-11-09 15:08:13,227 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 258 flow. Second operand 4 states and 278 transitions. [2024-11-09 15:08:13,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 473 flow [2024-11-09 15:08:13,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:08:13,275 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 262 flow [2024-11-09 15:08:13,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-11-09 15:08:13,276 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-09 15:08:13,276 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 262 flow [2024-11-09 15:08:13,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:13,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:13,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:13,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:08:13,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:13,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1884253256, now seen corresponding path program 1 times [2024-11-09 15:08:13,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:13,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381432064] [2024-11-09 15:08:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381432064] [2024-11-09 15:08:13,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381432064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:13,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:13,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615746406] [2024-11-09 15:08:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:13,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:13,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:13,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:13,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-09 15:08:13,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:13,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:13,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-09 15:08:13,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:14,442 INFO L124 PetriNetUnfolderBase]: 9875/18608 cut-off events. [2024-11-09 15:08:14,443 INFO L125 PetriNetUnfolderBase]: For 8821/9099 co-relation queries the response was YES. [2024-11-09 15:08:14,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38917 conditions, 18608 events. 9875/18608 cut-off events. For 8821/9099 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 175301 event pairs, 2742 based on Foata normal form. 278/16630 useless extension candidates. Maximal degree in co-relation 23741. Up to 7590 conditions per place. [2024-11-09 15:08:14,590 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 66 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-09 15:08:14,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 479 flow [2024-11-09 15:08:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-09 15:08:14,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-11-09 15:08:14,592 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 262 flow. Second operand 4 states and 281 transitions. [2024-11-09 15:08:14,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 479 flow [2024-11-09 15:08:14,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 465 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:14,699 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 260 flow [2024-11-09 15:08:14,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2024-11-09 15:08:14,700 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-09 15:08:14,701 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 260 flow [2024-11-09 15:08:14,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:14,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:14,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:14,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:08:14,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:14,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:14,703 INFO L85 PathProgramCache]: Analyzing trace with hash -299170103, now seen corresponding path program 1 times [2024-11-09 15:08:14,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:14,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494053201] [2024-11-09 15:08:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494053201] [2024-11-09 15:08:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494053201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:14,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:14,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:14,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800556011] [2024-11-09 15:08:14,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:14,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:08:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:08:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:08:14,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-09 15:08:14,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:14,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:14,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-09 15:08:14,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:16,042 INFO L124 PetriNetUnfolderBase]: 13504/21736 cut-off events. [2024-11-09 15:08:16,042 INFO L125 PetriNetUnfolderBase]: For 9450/10175 co-relation queries the response was YES. [2024-11-09 15:08:16,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48199 conditions, 21736 events. 13504/21736 cut-off events. For 9450/10175 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 178892 event pairs, 2750 based on Foata normal form. 365/20178 useless extension candidates. Maximal degree in co-relation 28750. Up to 9338 conditions per place. [2024-11-09 15:08:16,236 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 95 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-09 15:08:16,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 622 flow [2024-11-09 15:08:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:08:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:08:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-11-09 15:08:16,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-09 15:08:16,238 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 260 flow. Second operand 5 states and 355 transitions. [2024-11-09 15:08:16,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 622 flow [2024-11-09 15:08:16,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 147 transitions, 602 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:16,315 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 262 flow [2024-11-09 15:08:16,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-11-09 15:08:16,316 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-09 15:08:16,316 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 262 flow [2024-11-09 15:08:16,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:16,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:16,317 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:16,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:08:16,317 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:16,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -299169078, now seen corresponding path program 1 times [2024-11-09 15:08:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:16,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336795552] [2024-11-09 15:08:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:16,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:16,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:16,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336795552] [2024-11-09 15:08:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336795552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:16,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:16,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:16,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83851467] [2024-11-09 15:08:16,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:16,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:16,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:16,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:16,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:16,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:16,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:16,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:16,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:16,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:17,802 INFO L124 PetriNetUnfolderBase]: 10971/19600 cut-off events. [2024-11-09 15:08:17,802 INFO L125 PetriNetUnfolderBase]: For 10043/10625 co-relation queries the response was YES. [2024-11-09 15:08:17,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41971 conditions, 19600 events. 10971/19600 cut-off events. For 10043/10625 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 177042 event pairs, 5070 based on Foata normal form. 561/17937 useless extension candidates. Maximal degree in co-relation 25125. Up to 9302 conditions per place. [2024-11-09 15:08:17,963 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 97 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-11-09 15:08:17,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 610 flow [2024-11-09 15:08:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2024-11-09 15:08:17,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2024-11-09 15:08:17,964 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 262 flow. Second operand 4 states and 300 transitions. [2024-11-09 15:08:17,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 610 flow [2024-11-09 15:08:18,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 147 transitions, 598 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:18,032 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 252 flow [2024-11-09 15:08:18,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-11-09 15:08:18,032 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-09 15:08:18,032 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 252 flow [2024-11-09 15:08:18,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:18,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:18,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:18,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:08:18,033 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:18,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1717660196, now seen corresponding path program 1 times [2024-11-09 15:08:18,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:18,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446056980] [2024-11-09 15:08:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:18,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:18,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446056980] [2024-11-09 15:08:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446056980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:18,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862991361] [2024-11-09 15:08:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:18,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:18,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-09 15:08:18,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:18,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:18,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-09 15:08:18,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:19,170 INFO L124 PetriNetUnfolderBase]: 9894/18268 cut-off events. [2024-11-09 15:08:19,170 INFO L125 PetriNetUnfolderBase]: For 8863/9141 co-relation queries the response was YES. [2024-11-09 15:08:19,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38362 conditions, 18268 events. 9894/18268 cut-off events. For 8863/9141 co-relation queries the response was YES. Maximal size of possible extension queue 1113. Compared 168152 event pairs, 2742 based on Foata normal form. 552/16669 useless extension candidates. Maximal degree in co-relation 23634. Up to 7864 conditions per place. [2024-11-09 15:08:19,295 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 67 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-09 15:08:19,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 468 flow [2024-11-09 15:08:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-09 15:08:19,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2024-11-09 15:08:19,297 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 252 flow. Second operand 4 states and 277 transitions. [2024-11-09 15:08:19,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 468 flow [2024-11-09 15:08:19,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:08:19,375 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 250 flow [2024-11-09 15:08:19,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-09 15:08:19,376 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-09 15:08:19,376 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 250 flow [2024-11-09 15:08:19,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:19,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:19,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:19,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:08:19,376 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:19,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1182408726, now seen corresponding path program 1 times [2024-11-09 15:08:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611443326] [2024-11-09 15:08:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:19,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:19,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:19,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611443326] [2024-11-09 15:08:19,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611443326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:19,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:19,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916305887] [2024-11-09 15:08:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:19,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:19,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:19,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:19,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:19,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:19,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:19,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:20,667 INFO L124 PetriNetUnfolderBase]: 15804/26988 cut-off events. [2024-11-09 15:08:20,668 INFO L125 PetriNetUnfolderBase]: For 14945/15787 co-relation queries the response was YES. [2024-11-09 15:08:20,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57392 conditions, 26988 events. 15804/26988 cut-off events. For 14945/15787 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 243981 event pairs, 6214 based on Foata normal form. 1444/24795 useless extension candidates. Maximal degree in co-relation 35440. Up to 11473 conditions per place. [2024-11-09 15:08:20,887 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 101 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-09 15:08:20,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 148 transitions, 664 flow [2024-11-09 15:08:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:20,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-09 15:08:20,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2024-11-09 15:08:20,889 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 250 flow. Second operand 4 states and 301 transitions. [2024-11-09 15:08:20,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 148 transitions, 664 flow [2024-11-09 15:08:20,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 644 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:20,946 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 276 flow [2024-11-09 15:08:20,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-11-09 15:08:20,947 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-09 15:08:20,947 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 276 flow [2024-11-09 15:08:20,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:20,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:20,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:20,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:08:20,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:20,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:20,948 INFO L85 PathProgramCache]: Analyzing trace with hash -684337860, now seen corresponding path program 1 times [2024-11-09 15:08:20,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:20,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940333352] [2024-11-09 15:08:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:20,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:21,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:21,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940333352] [2024-11-09 15:08:21,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940333352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:21,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:21,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:08:21,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740075775] [2024-11-09 15:08:21,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:21,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:08:21,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:21,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:08:21,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:08:21,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-09 15:08:21,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 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) [2024-11-09 15:08:21,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:21,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-09 15:08:21,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:22,375 INFO L124 PetriNetUnfolderBase]: 15759/25783 cut-off events. [2024-11-09 15:08:22,375 INFO L125 PetriNetUnfolderBase]: For 14612/15690 co-relation queries the response was YES. [2024-11-09 15:08:22,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59311 conditions, 25783 events. 15759/25783 cut-off events. For 14612/15690 co-relation queries the response was YES. Maximal size of possible extension queue 1493. Compared 222062 event pairs, 3433 based on Foata normal form. 1404/25374 useless extension candidates. Maximal degree in co-relation 37778. Up to 6544 conditions per place. [2024-11-09 15:08:22,586 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 127 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-09 15:08:22,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 180 transitions, 839 flow [2024-11-09 15:08:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:08:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:08:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2024-11-09 15:08:22,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-09 15:08:22,587 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 276 flow. Second operand 6 states and 413 transitions. [2024-11-09 15:08:22,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 180 transitions, 839 flow [2024-11-09 15:08:22,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 180 transitions, 839 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:08:22,681 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 301 flow [2024-11-09 15:08:22,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-11-09 15:08:22,683 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-09 15:08:22,683 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 301 flow [2024-11-09 15:08:22,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 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) [2024-11-09 15:08:22,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:22,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:22,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:08:22,684 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:22,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1707858266, now seen corresponding path program 1 times [2024-11-09 15:08:22,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:22,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918035816] [2024-11-09 15:08:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:22,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918035816] [2024-11-09 15:08:22,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918035816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:22,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:22,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:22,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835151325] [2024-11-09 15:08:22,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:22,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:08:22,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:08:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:08:22,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-09 15:08:22,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:22,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:22,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-09 15:08:22,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:24,325 INFO L124 PetriNetUnfolderBase]: 16215/26324 cut-off events. [2024-11-09 15:08:24,325 INFO L125 PetriNetUnfolderBase]: For 24726/26909 co-relation queries the response was YES. [2024-11-09 15:08:24,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64726 conditions, 26324 events. 16215/26324 cut-off events. For 24726/26909 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 223839 event pairs, 3315 based on Foata normal form. 1544/26285 useless extension candidates. Maximal degree in co-relation 41496. Up to 11286 conditions per place. [2024-11-09 15:08:24,521 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 102 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-09 15:08:24,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 150 transitions, 743 flow [2024-11-09 15:08:24,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:08:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:08:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2024-11-09 15:08:24,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7204081632653061 [2024-11-09 15:08:24,523 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 301 flow. Second operand 5 states and 353 transitions. [2024-11-09 15:08:24,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 150 transitions, 743 flow [2024-11-09 15:08:24,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 150 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:24,671 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 298 flow [2024-11-09 15:08:24,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-11-09 15:08:24,671 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-09 15:08:24,671 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 298 flow [2024-11-09 15:08:24,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:24,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:24,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:24,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:08:24,672 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:24,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1707859291, now seen corresponding path program 1 times [2024-11-09 15:08:24,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:24,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762297930] [2024-11-09 15:08:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:24,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:24,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762297930] [2024-11-09 15:08:24,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762297930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:24,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:24,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890003229] [2024-11-09 15:08:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:24,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:24,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:24,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:24,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:24,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:24,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:24,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:24,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:26,620 INFO L124 PetriNetUnfolderBase]: 13207/23946 cut-off events. [2024-11-09 15:08:26,620 INFO L125 PetriNetUnfolderBase]: For 20358/21945 co-relation queries the response was YES. [2024-11-09 15:08:26,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56054 conditions, 23946 events. 13207/23946 cut-off events. For 20358/21945 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 225087 event pairs, 6229 based on Foata normal form. 1515/23484 useless extension candidates. Maximal degree in co-relation 35715. Up to 11157 conditions per place. [2024-11-09 15:08:26,873 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 104 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-11-09 15:08:26,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 720 flow [2024-11-09 15:08:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:26,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-09 15:08:26,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-09 15:08:26,874 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 298 flow. Second operand 4 states and 298 transitions. [2024-11-09 15:08:26,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 720 flow [2024-11-09 15:08:27,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 150 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:27,025 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 288 flow [2024-11-09 15:08:27,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2024-11-09 15:08:27,026 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-09 15:08:27,026 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 288 flow [2024-11-09 15:08:27,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:27,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:27,027 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:27,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:08:27,027 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:27,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:27,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2000035946, now seen corresponding path program 1 times [2024-11-09 15:08:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:27,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675371994] [2024-11-09 15:08:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:27,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:27,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:27,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675371994] [2024-11-09 15:08:27,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675371994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:27,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:27,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198977971] [2024-11-09 15:08:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:27,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:27,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:27,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:27,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-09 15:08:27,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:27,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:27,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-09 15:08:27,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:28,851 INFO L124 PetriNetUnfolderBase]: 11899/22509 cut-off events. [2024-11-09 15:08:28,851 INFO L125 PetriNetUnfolderBase]: For 16711/18012 co-relation queries the response was YES. [2024-11-09 15:08:29,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 22509 events. 11899/22509 cut-off events. For 16711/18012 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 218586 event pairs, 3711 based on Foata normal form. 1120/21658 useless extension candidates. Maximal degree in co-relation 31540. Up to 8309 conditions per place. [2024-11-09 15:08:29,131 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 71 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2024-11-09 15:08:29,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 543 flow [2024-11-09 15:08:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-09 15:08:29,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-09 15:08:29,133 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 288 flow. Second operand 4 states and 280 transitions. [2024-11-09 15:08:29,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 543 flow [2024-11-09 15:08:29,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 118 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:08:29,289 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 288 flow [2024-11-09 15:08:29,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-11-09 15:08:29,290 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-09 15:08:29,290 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 288 flow [2024-11-09 15:08:29,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:29,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:29,290 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:29,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:08:29,290 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:29,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:29,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1207680655, now seen corresponding path program 1 times [2024-11-09 15:08:29,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:29,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473280108] [2024-11-09 15:08:29,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:29,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:29,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:29,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473280108] [2024-11-09 15:08:29,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473280108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:29,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:29,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:29,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951750534] [2024-11-09 15:08:29,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:29,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:29,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:29,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:29,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:29,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:29,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:29,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:30,786 INFO L124 PetriNetUnfolderBase]: 15736/26116 cut-off events. [2024-11-09 15:08:30,786 INFO L125 PetriNetUnfolderBase]: For 22760/23942 co-relation queries the response was YES. [2024-11-09 15:08:30,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61857 conditions, 26116 events. 15736/26116 cut-off events. For 22760/23942 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 228359 event pairs, 6223 based on Foata normal form. 1307/25597 useless extension candidates. Maximal degree in co-relation 38821. Up to 11469 conditions per place. [2024-11-09 15:08:30,947 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 102 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-09 15:08:30,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 148 transitions, 707 flow [2024-11-09 15:08:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-09 15:08:30,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-09 15:08:30,949 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 288 flow. Second operand 4 states and 298 transitions. [2024-11-09 15:08:30,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 148 transitions, 707 flow [2024-11-09 15:08:30,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 148 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:30,996 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 290 flow [2024-11-09 15:08:30,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-09 15:08:30,997 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2024-11-09 15:08:30,997 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 290 flow [2024-11-09 15:08:30,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:30,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:30,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:30,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:08:30,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:30,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:30,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1403999463, now seen corresponding path program 1 times [2024-11-09 15:08:30,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:30,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175615133] [2024-11-09 15:08:30,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:30,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:31,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:31,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175615133] [2024-11-09 15:08:31,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175615133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:31,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:31,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:08:31,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993228494] [2024-11-09 15:08:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:31,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:08:31,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:08:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:08:31,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-09 15:08:31,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:31,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:31,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-09 15:08:31,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:32,750 INFO L124 PetriNetUnfolderBase]: 17101/27512 cut-off events. [2024-11-09 15:08:32,750 INFO L125 PetriNetUnfolderBase]: For 26780/28706 co-relation queries the response was YES. [2024-11-09 15:08:32,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68550 conditions, 27512 events. 17101/27512 cut-off events. For 26780/28706 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 232411 event pairs, 3587 based on Foata normal form. 2288/28089 useless extension candidates. Maximal degree in co-relation 54759. Up to 6910 conditions per place. [2024-11-09 15:08:33,050 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 132 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-09 15:08:33,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 180 transitions, 926 flow [2024-11-09 15:08:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:08:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:08:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-09 15:08:33,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6972789115646258 [2024-11-09 15:08:33,052 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 290 flow. Second operand 6 states and 410 transitions. [2024-11-09 15:08:33,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 180 transitions, 926 flow [2024-11-09 15:08:33,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 180 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:08:33,180 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 311 flow [2024-11-09 15:08:33,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-09 15:08:33,181 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-09 15:08:33,181 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 311 flow [2024-11-09 15:08:33,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:33,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:33,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:33,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:08:33,181 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:33,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1871541198, now seen corresponding path program 1 times [2024-11-09 15:08:33,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:33,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029789772] [2024-11-09 15:08:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:33,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029789772] [2024-11-09 15:08:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029789772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:33,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:33,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804771696] [2024-11-09 15:08:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:33,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:33,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-09 15:08:33,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:33,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:33,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-09 15:08:33,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:34,532 INFO L124 PetriNetUnfolderBase]: 12814/23677 cut-off events. [2024-11-09 15:08:34,532 INFO L125 PetriNetUnfolderBase]: For 29371/31238 co-relation queries the response was YES. [2024-11-09 15:08:34,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57747 conditions, 23677 events. 12814/23677 cut-off events. For 29371/31238 co-relation queries the response was YES. Maximal size of possible extension queue 1300. Compared 225792 event pairs, 4044 based on Foata normal form. 2003/23697 useless extension candidates. Maximal degree in co-relation 46739. Up to 9274 conditions per place. [2024-11-09 15:08:34,802 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 76 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-09 15:08:34,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 597 flow [2024-11-09 15:08:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-11-09 15:08:34,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-11-09 15:08:34,804 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 311 flow. Second operand 4 states and 276 transitions. [2024-11-09 15:08:34,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 597 flow [2024-11-09 15:08:34,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 575 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:34,946 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 302 flow [2024-11-09 15:08:34,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-09 15:08:34,946 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-09 15:08:34,947 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 302 flow [2024-11-09 15:08:34,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:34,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:34,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:34,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 15:08:34,947 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:34,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1521628256, now seen corresponding path program 1 times [2024-11-09 15:08:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736412052] [2024-11-09 15:08:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:34,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:34,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736412052] [2024-11-09 15:08:34,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736412052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:34,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:34,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:08:34,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260812006] [2024-11-09 15:08:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:34,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:08:35,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:35,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:08:35,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:08:35,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-09 15:08:35,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:35,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:35,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-09 15:08:35,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:36,668 INFO L124 PetriNetUnfolderBase]: 17089/27301 cut-off events. [2024-11-09 15:08:36,668 INFO L125 PetriNetUnfolderBase]: For 28108/29622 co-relation queries the response was YES. [2024-11-09 15:08:36,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70598 conditions, 27301 events. 17089/27301 cut-off events. For 28108/29622 co-relation queries the response was YES. Maximal size of possible extension queue 1506. Compared 227327 event pairs, 6748 based on Foata normal form. 1864/27553 useless extension candidates. Maximal degree in co-relation 56678. Up to 12383 conditions per place. [2024-11-09 15:08:36,930 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 166 selfloop transitions, 8 changer transitions 0/210 dead transitions. [2024-11-09 15:08:36,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 210 transitions, 1132 flow [2024-11-09 15:08:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:08:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:08:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-09 15:08:36,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2024-11-09 15:08:36,932 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 302 flow. Second operand 6 states and 439 transitions. [2024-11-09 15:08:36,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 210 transitions, 1132 flow [2024-11-09 15:08:37,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 210 transitions, 1095 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:08:37,276 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 318 flow [2024-11-09 15:08:37,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-09 15:08:37,277 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-09 15:08:37,277 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 318 flow [2024-11-09 15:08:37,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:37,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:37,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:37,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:08:37,277 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:37,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:37,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2111764211, now seen corresponding path program 1 times [2024-11-09 15:08:37,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:37,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848305539] [2024-11-09 15:08:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:37,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:37,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:37,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848305539] [2024-11-09 15:08:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848305539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:37,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:37,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:37,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586831394] [2024-11-09 15:08:37,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:37,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:37,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:37,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:37,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-09 15:08:37,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:37,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:37,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-09 15:08:37,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:38,748 INFO L124 PetriNetUnfolderBase]: 14303/24867 cut-off events. [2024-11-09 15:08:38,748 INFO L125 PetriNetUnfolderBase]: For 36264/38189 co-relation queries the response was YES. [2024-11-09 15:08:38,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62638 conditions, 24867 events. 14303/24867 cut-off events. For 36264/38189 co-relation queries the response was YES. Maximal size of possible extension queue 1353. Compared 225764 event pairs, 7060 based on Foata normal form. 2250/25118 useless extension candidates. Maximal degree in co-relation 50454. Up to 12508 conditions per place. [2024-11-09 15:08:39,025 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 111 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-11-09 15:08:39,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 152 transitions, 820 flow [2024-11-09 15:08:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:39,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-09 15:08:39,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2024-11-09 15:08:39,026 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 318 flow. Second operand 4 states and 296 transitions. [2024-11-09 15:08:39,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 152 transitions, 820 flow [2024-11-09 15:08:39,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 777 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-09 15:08:39,142 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 301 flow [2024-11-09 15:08:39,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-09 15:08:39,143 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-09 15:08:39,143 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 301 flow [2024-11-09 15:08:39,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:39,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:39,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:39,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 15:08:39,143 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:39,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2111765236, now seen corresponding path program 1 times [2024-11-09 15:08:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763528281] [2024-11-09 15:08:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:39,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:39,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:39,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763528281] [2024-11-09 15:08:39,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763528281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:39,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:39,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:39,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58222840] [2024-11-09 15:08:39,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:39,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:08:39,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:39,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:08:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:08:39,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-09 15:08:39,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:39,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:39,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-09 15:08:39,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:40,703 INFO L124 PetriNetUnfolderBase]: 17024/26790 cut-off events. [2024-11-09 15:08:40,703 INFO L125 PetriNetUnfolderBase]: For 31927/34358 co-relation queries the response was YES. [2024-11-09 15:08:40,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68650 conditions, 26790 events. 17024/26790 cut-off events. For 31927/34358 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 218750 event pairs, 4044 based on Foata normal form. 2431/27876 useless extension candidates. Maximal degree in co-relation 55134. Up to 11413 conditions per place. [2024-11-09 15:08:41,156 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 109 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-09 15:08:41,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 781 flow [2024-11-09 15:08:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:08:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:08:41,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-09 15:08:41,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163265306122449 [2024-11-09 15:08:41,157 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 301 flow. Second operand 5 states and 351 transitions. [2024-11-09 15:08:41,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 781 flow [2024-11-09 15:08:41,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 150 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:08:41,241 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 305 flow [2024-11-09 15:08:41,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-09 15:08:41,242 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-09 15:08:41,242 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 305 flow [2024-11-09 15:08:41,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:41,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:41,242 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:41,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 15:08:41,242 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:41,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:41,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1040212079, now seen corresponding path program 1 times [2024-11-09 15:08:41,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:41,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063398208] [2024-11-09 15:08:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:41,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:41,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063398208] [2024-11-09 15:08:41,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063398208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:41,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:41,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:08:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580563428] [2024-11-09 15:08:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:41,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:08:41,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:08:41,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:08:41,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-09 15:08:41,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:41,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:41,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-09 15:08:41,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:42,805 INFO L124 PetriNetUnfolderBase]: 17024/26465 cut-off events. [2024-11-09 15:08:42,805 INFO L125 PetriNetUnfolderBase]: For 36152/38583 co-relation queries the response was YES. [2024-11-09 15:08:42,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68976 conditions, 26465 events. 17024/26465 cut-off events. For 36152/38583 co-relation queries the response was YES. Maximal size of possible extension queue 1420. Compared 212582 event pairs, 4044 based on Foata normal form. 3081/28201 useless extension candidates. Maximal degree in co-relation 55412. Up to 7579 conditions per place. [2024-11-09 15:08:43,094 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 137 selfloop transitions, 9 changer transitions 0/181 dead transitions. [2024-11-09 15:08:43,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 181 transitions, 975 flow [2024-11-09 15:08:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:08:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:08:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-09 15:08:43,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921768707482994 [2024-11-09 15:08:43,096 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 305 flow. Second operand 6 states and 407 transitions. [2024-11-09 15:08:43,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 181 transitions, 975 flow [2024-11-09 15:08:43,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 181 transitions, 966 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:43,221 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 321 flow [2024-11-09 15:08:43,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-11-09 15:08:43,221 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2024-11-09 15:08:43,222 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 321 flow [2024-11-09 15:08:43,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:43,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:43,222 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:43,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 15:08:43,222 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:08:43,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1234485486, now seen corresponding path program 1 times [2024-11-09 15:08:43,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:43,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070370890] [2024-11-09 15:08:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:43,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:43,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:43,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070370890] [2024-11-09 15:08:43,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070370890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:43,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:43,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:08:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340784092] [2024-11-09 15:08:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:43,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:08:43,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:43,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:08:43,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:08:43,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-09 15:08:43,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:43,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:43,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-09 15:08:43,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:44,715 INFO L124 PetriNetUnfolderBase]: 17024/25642 cut-off events. [2024-11-09 15:08:44,716 INFO L125 PetriNetUnfolderBase]: For 38558/40942 co-relation queries the response was YES. [2024-11-09 15:08:44,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70844 conditions, 25642 events. 17024/25642 cut-off events. For 38558/40942 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 197539 event pairs, 7060 based on Foata normal form. 2709/27651 useless extension candidates. Maximal degree in co-relation 56947. Up to 12833 conditions per place. [2024-11-09 15:08:44,902 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 213/213 dead transitions. [2024-11-09 15:08:44,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 213 transitions, 1187 flow [2024-11-09 15:08:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:08:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:08:44,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2024-11-09 15:08:44,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2024-11-09 15:08:44,904 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 321 flow. Second operand 6 states and 435 transitions. [2024-11-09 15:08:44,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 213 transitions, 1187 flow [2024-11-09 15:08:45,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 213 transitions, 1169 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 15:08:45,207 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2024-11-09 15:08:45,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2024-11-09 15:08:45,207 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-09 15:08:45,208 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2024-11-09 15:08:45,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-09 15:08:45,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-09 15:08:45,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-09 15:08:45,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-09 15:08:45,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-09 15:08:45,214 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-09 15:08:45,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 15:08:45,214 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:45,223 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:08:45,224 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:08:45,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:08:45 BasicIcfg [2024-11-09 15:08:45,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:08:45,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:08:45,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:08:45,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:08:45,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:06" (3/4) ... [2024-11-09 15:08:45,231 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:08:45,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:08:45,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:08:45,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 15:08:45,237 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-09 15:08:45,238 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 15:08:45,238 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 15:08:45,238 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:08:45,316 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:08:45,317 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:08:45,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:08:45,317 INFO L158 Benchmark]: Toolchain (without parser) took 39819.90ms. Allocated memory was 172.0MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 144.0MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2024-11-09 15:08:45,318 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 172.0MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:08:45,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.35ms. Allocated memory is still 172.0MB. Free memory was 144.0MB in the beginning and 130.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 15:08:45,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.55ms. Allocated memory is still 172.0MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:08:45,318 INFO L158 Benchmark]: Boogie Preprocessor took 38.29ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:08:45,318 INFO L158 Benchmark]: RCFGBuilder took 706.99ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 92.6MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 15:08:45,319 INFO L158 Benchmark]: TraceAbstraction took 38721.96ms. Allocated memory was 172.0MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 92.2MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-11-09 15:08:45,319 INFO L158 Benchmark]: Witness Printer took 87.79ms. Allocated memory is still 5.6GB. Free memory was 2.5GB in the beginning and 2.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:08:45,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 172.0MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.35ms. Allocated memory is still 172.0MB. Free memory was 144.0MB in the beginning and 130.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.55ms. Allocated memory is still 172.0MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.29ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.99ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 92.6MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 38721.96ms. Allocated memory was 172.0MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 92.2MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 87.79ms. Allocated memory is still 5.6GB. Free memory was 2.5GB in the beginning and 2.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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, 159 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: 38.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 36.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2269 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1934 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4500 IncrementalHoareTripleChecker+Invalid, 4605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 77 mSDtfsCounter, 4500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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! [2024-11-09 15:08:45,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE