./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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-simpl-str-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 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:03:46,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:03:46,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:03:46,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:03:46,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:03:46,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:03:46,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:03:46,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:03:46,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:03:46,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:03:46,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:03:46,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:03:46,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:03:46,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:03:46,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:03:46,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:03:46,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:03:46,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:03:46,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:03:46,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:03:46,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:03:46,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:03:46,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:03:46,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:03:46,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:03:46,876 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:03:46,877 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:03:46,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:03:46,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:03:46,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:03:46,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:03:46,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:03:46,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:03:46,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:03:46,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:46,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:03:46,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:03:46,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:03:46,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:03:46,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:03:46,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:03:46,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:03:46,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:03:46,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:03:46,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 [2024-11-19 14:03:47,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:03:47,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:03:47,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:03:47,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:03:47,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:03:47,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2024-11-19 14:03:48,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:03:48,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:03:48,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2024-11-19 14:03:48,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18581cfe3/b492b0a225b643d1bb367e2378569ffb/FLAG005a228f7 [2024-11-19 14:03:49,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18581cfe3/b492b0a225b643d1bb367e2378569ffb [2024-11-19 14:03:49,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:03:49,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:03:49,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:49,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:03:49,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:03:49,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ebfd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49, skipping insertion in model container [2024-11-19 14:03:49,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:03:49,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:49,513 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:03:49,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:49,592 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:03:49,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49 WrapperNode [2024-11-19 14:03:49,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:49,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:49,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:03:49,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:03:49,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,645 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 201 [2024-11-19 14:03:49,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:49,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:03:49,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:03:49,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:03:49,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,681 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]. [2024-11-19 14:03:49,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:03:49,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:03:49,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:03:49,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:03:49,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (1/1) ... [2024-11-19 14:03:49,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:49,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:49,736 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) [2024-11-19 14:03:49,739 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 [2024-11-19 14:03:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:03:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:03:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:03:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:03:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:03:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:03:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:03:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:03:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:03:49,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:03:49,781 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:03:49,877 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:03:49,879 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:03:50,235 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:03:50,235 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:03:50,438 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:03:50,439 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:03:50,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:50 BoogieIcfgContainer [2024-11-19 14:03:50,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:03:50,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:03:50,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:03:50,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:03:50,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:49" (1/3) ... [2024-11-19 14:03:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188f9af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:50, skipping insertion in model container [2024-11-19 14:03:50,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:49" (2/3) ... [2024-11-19 14:03:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188f9af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:50, skipping insertion in model container [2024-11-19 14:03:50,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:50" (3/3) ... [2024-11-19 14:03:50,447 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2024-11-19 14:03:50,464 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:03:50,465 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-19 14:03:50,465 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:03:50,537 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:03:50,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2024-11-19 14:03:50,622 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2024-11-19 14:03:50,622 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:03:50,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 326 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-11-19 14:03:50,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2024-11-19 14:03:50,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2024-11-19 14:03:50,643 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:03:50,649 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;@4077a5b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:03:50,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 14:03:50,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:03:50,657 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-19 14:03:50,657 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:03:50,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:50,658 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:50,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:50,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash -355083188, now seen corresponding path program 1 times [2024-11-19 14:03:50,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:50,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799801808] [2024-11-19 14:03:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:50,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:50,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:50,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799801808] [2024-11-19 14:03:50,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799801808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:50,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:50,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433016562] [2024-11-19 14:03:50,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:50,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:50,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:50,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:51,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:03:51,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2024-11-19 14:03:51,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:51,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:03:51,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:52,687 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2024-11-19 14:03:52,688 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-11-19 14:03:52,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 105779 event pairs, 2832 based on Foata normal form. 364/11549 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2024-11-19 14:03:52,846 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2024-11-19 14:03:52,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2024-11-19 14:03:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-11-19 14:03:52,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2024-11-19 14:03:52,862 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2024-11-19 14:03:52,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2024-11-19 14:03:52,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:52,894 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2024-11-19 14:03:52,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2024-11-19 14:03:52,901 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-19 14:03:52,901 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2024-11-19 14:03:52,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2024-11-19 14:03:52,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:52,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:52,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:03:52,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:52,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1877323747, now seen corresponding path program 1 times [2024-11-19 14:03:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:52,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928338424] [2024-11-19 14:03:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:53,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928338424] [2024-11-19 14:03:53,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928338424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:53,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:53,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:53,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362967592] [2024-11-19 14:03:53,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:53,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:53,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:53,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:53,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:53,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-19 14:03:53,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:53,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:53,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-19 14:03:53,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:54,054 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2024-11-19 14:03:54,054 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2024-11-19 14:03:54,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 97811 event pairs, 1511 based on Foata normal form. 18/9931 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2024-11-19 14:03:54,155 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-11-19 14:03:54,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2024-11-19 14:03:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-11-19 14:03:54,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-11-19 14:03:54,161 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2024-11-19 14:03:54,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2024-11-19 14:03:54,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:54,216 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2024-11-19 14:03:54,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2024-11-19 14:03:54,217 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-11-19 14:03:54,218 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2024-11-19 14:03:54,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:54,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:54,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:54,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:03:54,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash -966011323, now seen corresponding path program 1 times [2024-11-19 14:03:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216899817] [2024-11-19 14:03:54,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:54,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216899817] [2024-11-19 14:03:54,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216899817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:54,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:54,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372981242] [2024-11-19 14:03:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:54,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:54,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:54,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:54,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-19 14:03:54,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:54,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:54,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-19 14:03:54,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:55,466 INFO L124 PetriNetUnfolderBase]: 6243/11181 cut-off events. [2024-11-19 14:03:55,466 INFO L125 PetriNetUnfolderBase]: For 3675/4030 co-relation queries the response was YES. [2024-11-19 14:03:55,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21925 conditions, 11181 events. 6243/11181 cut-off events. For 3675/4030 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 93179 event pairs, 1765 based on Foata normal form. 636/9670 useless extension candidates. Maximal degree in co-relation 12608. Up to 4952 conditions per place. [2024-11-19 14:03:55,538 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 61 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2024-11-19 14:03:55,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 107 transitions, 413 flow [2024-11-19 14:03:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2024-11-19 14:03:55,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.702247191011236 [2024-11-19 14:03:55,541 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 250 transitions. [2024-11-19 14:03:55,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 107 transitions, 413 flow [2024-11-19 14:03:55,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 107 transitions, 399 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:55,558 INFO L231 Difference]: Finished difference. Result has 82 places, 83 transitions, 208 flow [2024-11-19 14:03:55,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=83} [2024-11-19 14:03:55,560 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-19 14:03:55,560 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 208 flow [2024-11-19 14:03:55,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:55,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:55,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:55,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:03:55,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:55,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1932537072, now seen corresponding path program 1 times [2024-11-19 14:03:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:55,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534845064] [2024-11-19 14:03:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:55,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:55,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534845064] [2024-11-19 14:03:55,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534845064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:55,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:55,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:55,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456280438] [2024-11-19 14:03:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:55,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:55,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:55,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:55,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:55,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-19 14:03:55,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-19 14:03:55,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:55,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-19 14:03:55,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:56,608 INFO L124 PetriNetUnfolderBase]: 6329/11351 cut-off events. [2024-11-19 14:03:56,609 INFO L125 PetriNetUnfolderBase]: For 3355/3373 co-relation queries the response was YES. [2024-11-19 14:03:56,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22824 conditions, 11351 events. 6329/11351 cut-off events. For 3355/3373 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 94746 event pairs, 1511 based on Foata normal form. 200/10182 useless extension candidates. Maximal degree in co-relation 12266. Up to 5329 conditions per place. [2024-11-19 14:03:56,690 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-19 14:03:56,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 105 transitions, 383 flow [2024-11-19 14:03:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:56,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-11-19 14:03:56,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2024-11-19 14:03:56,692 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 208 flow. Second operand 4 states and 249 transitions. [2024-11-19 14:03:56,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 105 transitions, 383 flow [2024-11-19 14:03:56,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 105 transitions, 373 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:56,728 INFO L231 Difference]: Finished difference. Result has 81 places, 82 transitions, 206 flow [2024-11-19 14:03:56,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=81, PETRI_TRANSITIONS=82} [2024-11-19 14:03:56,729 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-11-19 14:03:56,731 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 82 transitions, 206 flow [2024-11-19 14:03:56,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-19 14:03:56,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:56,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:56,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:03:56,732 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:56,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash 118420771, now seen corresponding path program 1 times [2024-11-19 14:03:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711155696] [2024-11-19 14:03:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:56,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:56,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711155696] [2024-11-19 14:03:56,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711155696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:56,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:56,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:56,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708594970] [2024-11-19 14:03:56,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:56,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:56,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:56,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-19 14:03:56,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:56,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:56,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-19 14:03:56,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:57,573 INFO L124 PetriNetUnfolderBase]: 4957/9647 cut-off events. [2024-11-19 14:03:57,573 INFO L125 PetriNetUnfolderBase]: For 2857/2995 co-relation queries the response was YES. [2024-11-19 14:03:57,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18122 conditions, 9647 events. 4957/9647 cut-off events. For 2857/2995 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 84613 event pairs, 1729 based on Foata normal form. 138/8142 useless extension candidates. Maximal degree in co-relation 10504. Up to 3328 conditions per place. [2024-11-19 14:03:57,643 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2024-11-19 14:03:57,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 105 transitions, 403 flow [2024-11-19 14:03:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-19 14:03:57,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-19 14:03:57,645 INFO L175 Difference]: Start difference. First operand has 81 places, 82 transitions, 206 flow. Second operand 4 states and 251 transitions. [2024-11-19 14:03:57,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 105 transitions, 403 flow [2024-11-19 14:03:57,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 389 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:57,659 INFO L231 Difference]: Finished difference. Result has 80 places, 81 transitions, 202 flow [2024-11-19 14:03:57,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=80, PETRI_TRANSITIONS=81} [2024-11-19 14:03:57,660 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2024-11-19 14:03:57,660 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 81 transitions, 202 flow [2024-11-19 14:03:57,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:57,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:57,661 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:57,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:03:57,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:57,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash 220892581, now seen corresponding path program 1 times [2024-11-19 14:03:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:57,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021908469] [2024-11-19 14:03:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:57,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:57,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021908469] [2024-11-19 14:03:57,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021908469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:57,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:57,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300159662] [2024-11-19 14:03:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:57,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:57,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:57,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-19 14:03:57,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:57,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:57,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-19 14:03:57,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:58,876 INFO L124 PetriNetUnfolderBase]: 8866/13773 cut-off events. [2024-11-19 14:03:58,877 INFO L125 PetriNetUnfolderBase]: For 1949/1949 co-relation queries the response was YES. [2024-11-19 14:03:58,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28820 conditions, 13773 events. 8866/13773 cut-off events. For 1949/1949 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 101086 event pairs, 1439 based on Foata normal form. 0/12606 useless extension candidates. Maximal degree in co-relation 16044. Up to 6491 conditions per place. [2024-11-19 14:03:58,989 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 82 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-19 14:03:58,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 126 transitions, 482 flow [2024-11-19 14:03:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2024-11-19 14:03:58,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2024-11-19 14:03:58,992 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 202 flow. Second operand 5 states and 318 transitions. [2024-11-19 14:03:58,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 126 transitions, 482 flow [2024-11-19 14:03:59,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 126 transitions, 468 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:59,026 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 206 flow [2024-11-19 14:03:59,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2024-11-19 14:03:59,029 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2024-11-19 14:03:59,029 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 206 flow [2024-11-19 14:03:59,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:59,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:59,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:59,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:03:59,030 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:59,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash 220893606, now seen corresponding path program 1 times [2024-11-19 14:03:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:59,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308168505] [2024-11-19 14:03:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:59,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:59,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:59,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:59,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308168505] [2024-11-19 14:03:59,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308168505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:59,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:59,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:59,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007050807] [2024-11-19 14:03:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:59,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:59,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:59,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:59,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:03:59,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-11-19 14:03:59,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:59,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:03:59,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:59,746 INFO L124 PetriNetUnfolderBase]: 7078/12011 cut-off events. [2024-11-19 14:03:59,747 INFO L125 PetriNetUnfolderBase]: For 4309/4309 co-relation queries the response was YES. [2024-11-19 14:03:59,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24672 conditions, 12011 events. 7078/12011 cut-off events. For 4309/4309 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 96028 event pairs, 2971 based on Foata normal form. 182/10647 useless extension candidates. Maximal degree in co-relation 13510. Up to 5734 conditions per place. [2024-11-19 14:03:59,829 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 84 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2024-11-19 14:03:59,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 126 transitions, 476 flow [2024-11-19 14:03:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2024-11-19 14:03:59,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2024-11-19 14:03:59,831 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 206 flow. Second operand 4 states and 269 transitions. [2024-11-19 14:03:59,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 126 transitions, 476 flow [2024-11-19 14:03:59,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 126 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:59,861 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 196 flow [2024-11-19 14:03:59,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-11-19 14:03:59,862 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -3 predicate places. [2024-11-19 14:03:59,862 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 196 flow [2024-11-19 14:03:59,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-11-19 14:03:59,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:59,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:59,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:03:59,863 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:59,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1025681494, now seen corresponding path program 1 times [2024-11-19 14:03:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:59,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430810790] [2024-11-19 14:03:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:59,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:59,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430810790] [2024-11-19 14:03:59,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430810790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:59,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:59,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:59,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233509852] [2024-11-19 14:03:59,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:59,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:59,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:59,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:59,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:59,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:03:59,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:59,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:59,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:03:59,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:01,045 INFO L124 PetriNetUnfolderBase]: 10446/16968 cut-off events. [2024-11-19 14:04:01,046 INFO L125 PetriNetUnfolderBase]: For 5198/5494 co-relation queries the response was YES. [2024-11-19 14:04:01,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34453 conditions, 16968 events. 10446/16968 cut-off events. For 5198/5494 co-relation queries the response was YES. Maximal size of possible extension queue 975. Compared 135357 event pairs, 3702 based on Foata normal form. 712/15051 useless extension candidates. Maximal degree in co-relation 19694. Up to 7186 conditions per place. [2024-11-19 14:04:01,149 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 88 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-19 14:04:01,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 128 transitions, 530 flow [2024-11-19 14:04:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:01,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-19 14:04:01,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2024-11-19 14:04:01,151 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 196 flow. Second operand 4 states and 270 transitions. [2024-11-19 14:04:01,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 128 transitions, 530 flow [2024-11-19 14:04:01,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 514 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:01,195 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 224 flow [2024-11-19 14:04:01,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2024-11-19 14:04:01,196 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-19 14:04:01,196 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 224 flow [2024-11-19 14:04:01,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:01,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:01,197 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:01,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:04:01,198 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:01,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1742263885, now seen corresponding path program 1 times [2024-11-19 14:04:01,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:01,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180425256] [2024-11-19 14:04:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:01,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:01,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180425256] [2024-11-19 14:04:01,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180425256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:01,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:01,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:01,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243949140] [2024-11-19 14:04:01,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:01,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:01,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:01,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:01,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:01,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-19 14:04:01,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-11-19 14:04:01,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:01,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-19 14:04:01,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:02,521 INFO L124 PetriNetUnfolderBase]: 10506/16584 cut-off events. [2024-11-19 14:04:02,521 INFO L125 PetriNetUnfolderBase]: For 6465/6923 co-relation queries the response was YES. [2024-11-19 14:04:02,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36374 conditions, 16584 events. 10506/16584 cut-off events. For 6465/6923 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 127853 event pairs, 1845 based on Foata normal form. 676/15822 useless extension candidates. Maximal degree in co-relation 21993. Up to 4393 conditions per place. [2024-11-19 14:04:02,608 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 110 selfloop transitions, 9 changer transitions 0/156 dead transitions. [2024-11-19 14:04:02,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 156 transitions, 675 flow [2024-11-19 14:04:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2024-11-19 14:04:02,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2024-11-19 14:04:02,610 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 224 flow. Second operand 6 states and 368 transitions. [2024-11-19 14:04:02,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 156 transitions, 675 flow [2024-11-19 14:04:02,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 156 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:04:02,655 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 249 flow [2024-11-19 14:04:02,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2024-11-19 14:04:02,656 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-19 14:04:02,656 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 249 flow [2024-11-19 14:04:02,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-11-19 14:04:02,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:02,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:02,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:04:02,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:02,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:02,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1731354505, now seen corresponding path program 1 times [2024-11-19 14:04:02,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:02,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542024014] [2024-11-19 14:04:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:02,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:02,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542024014] [2024-11-19 14:04:02,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542024014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:02,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:02,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:02,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399707771] [2024-11-19 14:04:02,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:02,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:02,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:02,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:02,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:02,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-19 14:04:02,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:02,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:02,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-19 14:04:02,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:03,386 INFO L124 PetriNetUnfolderBase]: 7726/14246 cut-off events. [2024-11-19 14:04:03,386 INFO L125 PetriNetUnfolderBase]: For 11859/12524 co-relation queries the response was YES. [2024-11-19 14:04:03,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31649 conditions, 14246 events. 7726/14246 cut-off events. For 11859/12524 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 126563 event pairs, 2027 based on Foata normal form. 556/13262 useless extension candidates. Maximal degree in co-relation 18368. Up to 5836 conditions per place. [2024-11-19 14:04:03,472 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 62 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-19 14:04:03,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 104 transitions, 464 flow [2024-11-19 14:04:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-19 14:04:03,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-19 14:04:03,473 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 249 flow. Second operand 4 states and 251 transitions. [2024-11-19 14:04:03,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 104 transitions, 464 flow [2024-11-19 14:04:03,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 104 transitions, 442 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:03,542 INFO L231 Difference]: Finished difference. Result has 85 places, 80 transitions, 242 flow [2024-11-19 14:04:03,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=85, PETRI_TRANSITIONS=80} [2024-11-19 14:04:03,543 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 3 predicate places. [2024-11-19 14:04:03,543 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 80 transitions, 242 flow [2024-11-19 14:04:03,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:03,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:03,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:03,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:04:03,543 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:03,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2132249094, now seen corresponding path program 1 times [2024-11-19 14:04:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886426008] [2024-11-19 14:04:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:03,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886426008] [2024-11-19 14:04:03,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886426008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:03,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:03,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:03,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412593923] [2024-11-19 14:04:03,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:03,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:03,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:03,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:04:03,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-11-19 14:04:03,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:03,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:04:03,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:04,483 INFO L124 PetriNetUnfolderBase]: 10766/19813 cut-off events. [2024-11-19 14:04:04,483 INFO L125 PetriNetUnfolderBase]: For 13565/14956 co-relation queries the response was YES. [2024-11-19 14:04:04,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42679 conditions, 19813 events. 10766/19813 cut-off events. For 13565/14956 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 182288 event pairs, 4640 based on Foata normal form. 1047/18012 useless extension candidates. Maximal degree in co-relation 25696. Up to 8518 conditions per place. [2024-11-19 14:04:04,607 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 97 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2024-11-19 14:04:04,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 138 transitions, 668 flow [2024-11-19 14:04:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-11-19 14:04:04,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7528089887640449 [2024-11-19 14:04:04,609 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 242 flow. Second operand 4 states and 268 transitions. [2024-11-19 14:04:04,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 138 transitions, 668 flow [2024-11-19 14:04:04,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 138 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:04,664 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 261 flow [2024-11-19 14:04:04,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2024-11-19 14:04:04,665 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-19 14:04:04,665 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 261 flow [2024-11-19 14:04:04,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-11-19 14:04:04,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:04,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:04,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:04:04,665 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:04,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2132248069, now seen corresponding path program 1 times [2024-11-19 14:04:04,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:04,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895842903] [2024-11-19 14:04:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:04,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:04,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:04,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895842903] [2024-11-19 14:04:04,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895842903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:04,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:04,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659887435] [2024-11-19 14:04:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:04,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:04,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:04,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:04,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:04,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-19 14:04:04,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:04,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:04,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-19 14:04:04,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:05,847 INFO L124 PetriNetUnfolderBase]: 13072/21067 cut-off events. [2024-11-19 14:04:05,847 INFO L125 PetriNetUnfolderBase]: For 16274/18213 co-relation queries the response was YES. [2024-11-19 14:04:05,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50638 conditions, 21067 events. 13072/21067 cut-off events. For 16274/18213 co-relation queries the response was YES. Maximal size of possible extension queue 1154. Compared 169967 event pairs, 2189 based on Foata normal form. 1372/21229 useless extension candidates. Maximal degree in co-relation 32023. Up to 9910 conditions per place. [2024-11-19 14:04:05,974 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 96 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-19 14:04:05,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 136 transitions, 667 flow [2024-11-19 14:04:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2024-11-19 14:04:05,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2024-11-19 14:04:05,976 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 261 flow. Second operand 5 states and 316 transitions. [2024-11-19 14:04:05,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 136 transitions, 667 flow [2024-11-19 14:04:06,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 136 transitions, 664 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:06,075 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 275 flow [2024-11-19 14:04:06,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-11-19 14:04:06,075 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-11-19 14:04:06,076 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 275 flow [2024-11-19 14:04:06,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:06,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:06,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:06,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 14:04:06,076 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:06,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1523255093, now seen corresponding path program 1 times [2024-11-19 14:04:06,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:06,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151409721] [2024-11-19 14:04:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:06,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:06,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151409721] [2024-11-19 14:04:06,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151409721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:06,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:06,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984575190] [2024-11-19 14:04:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:06,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:06,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-19 14:04:06,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 275 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-11-19 14:04:06,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:06,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-19 14:04:06,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:07,316 INFO L124 PetriNetUnfolderBase]: 13047/21037 cut-off events. [2024-11-19 14:04:07,316 INFO L125 PetriNetUnfolderBase]: For 17511/18543 co-relation queries the response was YES. [2024-11-19 14:04:07,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52795 conditions, 21037 events. 13047/21037 cut-off events. For 17511/18543 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 169428 event pairs, 4671 based on Foata normal form. 910/20592 useless extension candidates. Maximal degree in co-relation 33853. Up to 9062 conditions per place. [2024-11-19 14:04:07,476 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 154 selfloop transitions, 8 changer transitions 0/195 dead transitions. [2024-11-19 14:04:07,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 195 transitions, 1021 flow [2024-11-19 14:04:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:07,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2024-11-19 14:04:07,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-11-19 14:04:07,478 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 275 flow. Second operand 6 states and 396 transitions. [2024-11-19 14:04:07,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 195 transitions, 1021 flow [2024-11-19 14:04:07,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 195 transitions, 983 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:07,666 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 290 flow [2024-11-19 14:04:07,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=290, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-11-19 14:04:07,667 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2024-11-19 14:04:07,667 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 290 flow [2024-11-19 14:04:07,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-11-19 14:04:07,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:07,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:07,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:04:07,668 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:07,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2132413138, now seen corresponding path program 1 times [2024-11-19 14:04:07,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:07,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491514197] [2024-11-19 14:04:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:07,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:07,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:07,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491514197] [2024-11-19 14:04:07,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491514197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:07,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:07,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:07,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815592454] [2024-11-19 14:04:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:07,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:07,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:07,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:07,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-19 14:04:07,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-19 14:04:07,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:07,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-19 14:04:07,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:08,934 INFO L124 PetriNetUnfolderBase]: 9596/17556 cut-off events. [2024-11-19 14:04:08,934 INFO L125 PetriNetUnfolderBase]: For 22111/23208 co-relation queries the response was YES. [2024-11-19 14:04:08,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42330 conditions, 17556 events. 9596/17556 cut-off events. For 22111/23208 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 158065 event pairs, 2522 based on Foata normal form. 1213/17166 useless extension candidates. Maximal degree in co-relation 29154. Up to 7473 conditions per place. [2024-11-19 14:04:09,062 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 71 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-19 14:04:09,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 110 transitions, 557 flow [2024-11-19 14:04:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-11-19 14:04:09,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2024-11-19 14:04:09,064 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 290 flow. Second operand 4 states and 247 transitions. [2024-11-19 14:04:09,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 110 transitions, 557 flow [2024-11-19 14:04:09,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 529 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:09,153 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 278 flow [2024-11-19 14:04:09,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-11-19 14:04:09,154 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-11-19 14:04:09,154 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 278 flow [2024-11-19 14:04:09,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-19 14:04:09,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:09,155 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:09,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:04:09,155 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:09,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1675181420, now seen corresponding path program 1 times [2024-11-19 14:04:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663851032] [2024-11-19 14:04:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:09,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:09,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:09,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663851032] [2024-11-19 14:04:09,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663851032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:09,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:09,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:09,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287666399] [2024-11-19 14:04:09,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:09,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:09,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:09,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:09,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:09,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-19 14:04:09,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 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) [2024-11-19 14:04:09,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:09,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-19 14:04:09,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:10,868 INFO L124 PetriNetUnfolderBase]: 13072/20501 cut-off events. [2024-11-19 14:04:10,868 INFO L125 PetriNetUnfolderBase]: For 23962/25343 co-relation queries the response was YES. [2024-11-19 14:04:10,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51891 conditions, 20501 events. 13072/20501 cut-off events. For 23962/25343 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 159201 event pairs, 2180 based on Foata normal form. 1931/21222 useless extension candidates. Maximal degree in co-relation 35551. Up to 5475 conditions per place. [2024-11-19 14:04:11,029 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 124 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2024-11-19 14:04:11,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 166 transitions, 880 flow [2024-11-19 14:04:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:11,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2024-11-19 14:04:11,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2024-11-19 14:04:11,032 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 278 flow. Second operand 6 states and 365 transitions. [2024-11-19 14:04:11,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 166 transitions, 880 flow [2024-11-19 14:04:11,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 166 transitions, 854 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:11,140 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 295 flow [2024-11-19 14:04:11,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2024-11-19 14:04:11,141 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2024-11-19 14:04:11,141 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 295 flow [2024-11-19 14:04:11,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 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) [2024-11-19 14:04:11,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:11,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:11,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:04:11,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:11,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:11,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1680297094, now seen corresponding path program 1 times [2024-11-19 14:04:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89442154] [2024-11-19 14:04:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:11,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:11,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89442154] [2024-11-19 14:04:11,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89442154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:11,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:11,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:11,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473788360] [2024-11-19 14:04:11,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:11,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:11,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:11,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:04:11,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2024-11-19 14:04:11,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:11,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:04:11,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:12,520 INFO L124 PetriNetUnfolderBase]: 10843/18836 cut-off events. [2024-11-19 14:04:12,521 INFO L125 PetriNetUnfolderBase]: For 26830/28713 co-relation queries the response was YES. [2024-11-19 14:04:12,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47874 conditions, 18836 events. 10843/18836 cut-off events. For 26830/28713 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 163033 event pairs, 4871 based on Foata normal form. 1861/19194 useless extension candidates. Maximal degree in co-relation 33017. Up to 9101 conditions per place. [2024-11-19 14:04:12,656 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 104 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2024-11-19 14:04:12,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 140 transitions, 763 flow [2024-11-19 14:04:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-19 14:04:12,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-19 14:04:12,658 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 295 flow. Second operand 4 states and 265 transitions. [2024-11-19 14:04:12,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 140 transitions, 763 flow [2024-11-19 14:04:12,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 140 transitions, 729 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:12,741 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 281 flow [2024-11-19 14:04:12,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-11-19 14:04:12,741 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-11-19 14:04:12,741 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 281 flow [2024-11-19 14:04:12,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2024-11-19 14:04:12,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:12,742 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:12,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 14:04:12,742 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:12,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1680298119, now seen corresponding path program 1 times [2024-11-19 14:04:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:12,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489794017] [2024-11-19 14:04:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:12,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:12,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489794017] [2024-11-19 14:04:12,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489794017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:12,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:12,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:12,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011693596] [2024-11-19 14:04:12,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:12,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:12,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:12,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:12,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:12,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-19 14:04:12,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:12,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:12,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-19 14:04:12,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:14,070 INFO L124 PetriNetUnfolderBase]: 13066/20406 cut-off events. [2024-11-19 14:04:14,070 INFO L125 PetriNetUnfolderBase]: For 24139/26698 co-relation queries the response was YES. [2024-11-19 14:04:14,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53226 conditions, 20406 events. 13066/20406 cut-off events. For 24139/26698 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 156640 event pairs, 2539 based on Foata normal form. 2053/21486 useless extension candidates. Maximal degree in co-relation 36589. Up to 9209 conditions per place. [2024-11-19 14:04:14,167 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 102 selfloop transitions, 6 changer transitions 0/138 dead transitions. [2024-11-19 14:04:14,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 138 transitions, 733 flow [2024-11-19 14:04:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2024-11-19 14:04:14,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2024-11-19 14:04:14,169 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 281 flow. Second operand 5 states and 314 transitions. [2024-11-19 14:04:14,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 138 transitions, 733 flow [2024-11-19 14:04:14,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 138 transitions, 727 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:14,246 INFO L231 Difference]: Finished difference. Result has 91 places, 80 transitions, 285 flow [2024-11-19 14:04:14,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2024-11-19 14:04:14,247 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-19 14:04:14,247 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 80 transitions, 285 flow [2024-11-19 14:04:14,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:14,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:14,247 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:14,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:04:14,248 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:14,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:14,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1338334283, now seen corresponding path program 1 times [2024-11-19 14:04:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747242945] [2024-11-19 14:04:14,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:14,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:14,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747242945] [2024-11-19 14:04:14,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747242945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:14,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:14,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:14,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580063296] [2024-11-19 14:04:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:14,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:14,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:14,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:14,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-19 14:04:14,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 80 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:14,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:14,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-19 14:04:14,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:15,385 INFO L124 PetriNetUnfolderBase]: 12976/20373 cut-off events. [2024-11-19 14:04:15,385 INFO L125 PetriNetUnfolderBase]: For 27756/29257 co-relation queries the response was YES. [2024-11-19 14:04:15,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53179 conditions, 20373 events. 12976/20373 cut-off events. For 27756/29257 co-relation queries the response was YES. Maximal size of possible extension queue 1089. Compared 158165 event pairs, 4595 based on Foata normal form. 1776/21142 useless extension candidates. Maximal degree in co-relation 36365. Up to 8717 conditions per place. [2024-11-19 14:04:15,513 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 100 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-11-19 14:04:15,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 136 transitions, 719 flow [2024-11-19 14:04:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-19 14:04:15,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-19 14:04:15,514 INFO L175 Difference]: Start difference. First operand has 91 places, 80 transitions, 285 flow. Second operand 4 states and 265 transitions. [2024-11-19 14:04:15,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 136 transitions, 719 flow [2024-11-19 14:04:15,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 136 transitions, 698 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:15,555 INFO L231 Difference]: Finished difference. Result has 91 places, 80 transitions, 290 flow [2024-11-19 14:04:15,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2024-11-19 14:04:15,556 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-19 14:04:15,556 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 80 transitions, 290 flow [2024-11-19 14:04:15,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:15,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:15,556 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:15,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:04:15,557 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:15,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -549633391, now seen corresponding path program 1 times [2024-11-19 14:04:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:15,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885400506] [2024-11-19 14:04:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:15,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:15,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:15,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885400506] [2024-11-19 14:04:15,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885400506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:15,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:15,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:15,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84176963] [2024-11-19 14:04:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:15,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:15,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:15,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:15,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-19 14:04:15,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 80 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 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) [2024-11-19 14:04:15,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:15,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-19 14:04:15,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:16,741 INFO L124 PetriNetUnfolderBase]: 14136/21773 cut-off events. [2024-11-19 14:04:16,741 INFO L125 PetriNetUnfolderBase]: For 34632/36787 co-relation queries the response was YES. [2024-11-19 14:04:16,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59690 conditions, 21773 events. 14136/21773 cut-off events. For 34632/36787 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 165586 event pairs, 2778 based on Foata normal form. 2709/23427 useless extension candidates. Maximal degree in co-relation 44858. Up to 5672 conditions per place. [2024-11-19 14:04:16,902 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 132 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2024-11-19 14:04:16,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 170 transitions, 980 flow [2024-11-19 14:04:16,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:16,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2024-11-19 14:04:16,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2024-11-19 14:04:16,904 INFO L175 Difference]: Start difference. First operand has 91 places, 80 transitions, 290 flow. Second operand 6 states and 362 transitions. [2024-11-19 14:04:16,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 170 transitions, 980 flow [2024-11-19 14:04:17,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 170 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:17,002 INFO L231 Difference]: Finished difference. Result has 95 places, 80 transitions, 311 flow [2024-11-19 14:04:17,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=95, PETRI_TRANSITIONS=80} [2024-11-19 14:04:17,003 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2024-11-19 14:04:17,003 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 80 transitions, 311 flow [2024-11-19 14:04:17,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 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) [2024-11-19 14:04:17,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:17,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:17,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 14:04:17,003 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:04:17,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1088551903, now seen corresponding path program 1 times [2024-11-19 14:04:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:17,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888454462] [2024-11-19 14:04:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:17,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:17,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888454462] [2024-11-19 14:04:17,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888454462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:17,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:17,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146904053] [2024-11-19 14:04:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:17,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:17,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-19 14:04:17,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 80 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:17,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:17,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-19 14:04:17,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:18,130 INFO L124 PetriNetUnfolderBase]: 14136/21114 cut-off events. [2024-11-19 14:04:18,130 INFO L125 PetriNetUnfolderBase]: For 35491/37605 co-relation queries the response was YES. [2024-11-19 14:04:18,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61269 conditions, 21114 events. 14136/21114 cut-off events. For 35491/37605 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 153773 event pairs, 5330 based on Foata normal form. 2391/22935 useless extension candidates. Maximal degree in co-relation 46289. Up to 10143 conditions per place. [2024-11-19 14:04:18,197 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 201/201 dead transitions. [2024-11-19 14:04:18,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 201 transitions, 1189 flow [2024-11-19 14:04:18,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2024-11-19 14:04:18,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2024-11-19 14:04:18,199 INFO L175 Difference]: Start difference. First operand has 95 places, 80 transitions, 311 flow. Second operand 6 states and 388 transitions. [2024-11-19 14:04:18,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 201 transitions, 1189 flow [2024-11-19 14:04:18,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 201 transitions, 1171 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:18,394 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-19 14:04:18,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-19 14:04:18,395 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2024-11-19 14:04:18,395 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-19 14:04:18,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:18,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-19 14:04:18,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-19 14:04:18,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-19 14:04:18,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-19 14:04:18,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-19 14:04:18,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-19 14:04:18,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-19 14:04:18,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:04:18,404 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] [2024-11-19 14:04:18,409 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:04:18,410 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:04:18,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:04:18 BasicIcfg [2024-11-19 14:04:18,414 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:04:18,415 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:04:18,415 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:04:18,415 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:04:18,415 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:50" (3/4) ... [2024-11-19 14:04:18,417 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:04:18,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:04:18,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:04:18,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:04:18,425 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-19 14:04:18,426 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-19 14:04:18,426 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 14:04:18,426 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:04:18,513 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:04:18,516 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:04:18,516 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:04:18,517 INFO L158 Benchmark]: Toolchain (without parser) took 29281.47ms. Allocated memory was 155.2MB in the beginning and 5.6GB in the end (delta: 5.5GB). Free memory was 83.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2024-11-19 14:04:18,517 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 106.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:04:18,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.39ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 124.8MB in the end (delta: -41.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2024-11-19 14:04:18,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.97ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 124.8MB in the beginning and 175.8MB in the end (delta: -51.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-11-19 14:04:18,518 INFO L158 Benchmark]: Boogie Preprocessor took 59.89ms. Allocated memory is still 205.5MB. Free memory was 175.8MB in the beginning and 173.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:18,518 INFO L158 Benchmark]: RCFGBuilder took 732.57ms. Allocated memory is still 205.5MB. Free memory was 173.7MB in the beginning and 121.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-19 14:04:18,518 INFO L158 Benchmark]: TraceAbstraction took 27972.83ms. Allocated memory was 205.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 120.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2024-11-19 14:04:18,519 INFO L158 Benchmark]: Witness Printer took 101.54ms. Allocated memory is still 5.6GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 14:04:18,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 106.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.39ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 124.8MB in the end (delta: -41.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.97ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 124.8MB in the beginning and 175.8MB in the end (delta: -51.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.89ms. Allocated memory is still 205.5MB. Free memory was 175.8MB in the beginning and 173.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.57ms. Allocated memory is still 205.5MB. Free memory was 173.7MB in the beginning and 121.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27972.83ms. Allocated memory was 205.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 120.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 101.54ms. Allocated memory is still 5.6GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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, 147 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: 27.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1982 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1701 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3944 IncrementalHoareTripleChecker+Invalid, 4045 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 83 mSDtfsCounter, 3944 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=19, InterpolantAutomatonStates: 93, 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, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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! [2024-11-19 14:04:18,551 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