./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:49:16,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:49:16,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:49:16,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:49:16,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:49:16,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:49:16,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:49:16,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:49:16,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:49:16,536 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:49:16,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:49:16,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:49:16,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:49:16,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:49:16,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:49:16,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:49:16,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:49:16,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:49:16,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:49:16,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:49:16,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:49:16,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:49:16,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:49:16,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:49:16,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:49:16,549 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:49:16,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:49:16,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:49:16,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:49:16,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:49:16,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:49:16,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:49:16,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:49:16,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:49:16,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:49:16,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:49:16,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:49:16,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:49:16,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:49:16,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:49:16,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:49:16,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:49:16,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:49:16,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:49:16,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2024-11-12 20:49:16,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:49:16,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:49:16,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:49:16,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:49:16,836 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:49:16,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-11-12 20:49:18,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:49:18,602 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:49:18,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-11-12 20:49:18,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfce07e19/6a043393264b47b6b3149e00ef536d95/FLAG47216e7d8 [2024-11-12 20:49:18,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfce07e19/6a043393264b47b6b3149e00ef536d95 [2024-11-12 20:49:18,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:49:18,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:49:18,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:49:18,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:49:18,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:49:18,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:49:18" (1/1) ... [2024-11-12 20:49:18,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc59d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:18, skipping insertion in model container [2024-11-12 20:49:18,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:49:18" (1/1) ... [2024-11-12 20:49:18,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:49:19,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:49:19,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:49:19,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:49:19,509 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:49:19,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19 WrapperNode [2024-11-12 20:49:19,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:49:19,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:49:19,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:49:19,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:49:19,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,614 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2024-11-12 20:49:19,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:49:19,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:49:19,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:49:19,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:49:19,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,646 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-12 20:49:19,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:49:19,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:49:19,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:49:19,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:49:19,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (1/1) ... [2024-11-12 20:49:19,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:49:19,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:19,707 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) [2024-11-12 20:49:19,708 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 [2024-11-12 20:49:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 20:49:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 20:49:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 20:49:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:49:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 20:49:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 20:49:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 20:49:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 20:49:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:49:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:49:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:49:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:49:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 20:49:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:49:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:49:19,752 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:49:19,903 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:49:19,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:49:20,233 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:49:20,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:49:21,220 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:49:21,221 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-12 20:49:21,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:49:21 BoogieIcfgContainer [2024-11-12 20:49:21,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:49:21,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:49:21,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:49:21,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:49:21,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:49:18" (1/3) ... [2024-11-12 20:49:21,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd213db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:49:21, skipping insertion in model container [2024-11-12 20:49:21,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:19" (2/3) ... [2024-11-12 20:49:21,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd213db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:49:21, skipping insertion in model container [2024-11-12 20:49:21,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:49:21" (3/3) ... [2024-11-12 20:49:21,232 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2024-11-12 20:49:21,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:49:21,249 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-12 20:49:21,249 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:49:21,309 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 20:49:21,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 110 flow [2024-11-12 20:49:21,393 INFO L124 PetriNetUnfolderBase]: 4/46 cut-off events. [2024-11-12 20:49:21,394 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 20:49:21,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 4/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-12 20:49:21,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 110 flow [2024-11-12 20:49:21,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 97 flow [2024-11-12 20:49:21,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:49:21,423 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;@19b566a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:49:21,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 20:49:21,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:49:21,443 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2024-11-12 20:49:21,443 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:49:21,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:21,444 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:21,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:21,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2031590190, now seen corresponding path program 1 times [2024-11-12 20:49:21,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:21,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388599191] [2024-11-12 20:49:21,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:22,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:22,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388599191] [2024-11-12 20:49:22,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388599191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:22,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:22,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:49:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194436749] [2024-11-12 20:49:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:22,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:49:22,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:22,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:49:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:49:22,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-12 20:49:22,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:22,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:22,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-12 20:49:22,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:22,916 INFO L124 PetriNetUnfolderBase]: 682/1355 cut-off events. [2024-11-12 20:49:22,916 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-12 20:49:22,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 1355 events. 682/1355 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7086 event pairs, 189 based on Foata normal form. 16/1194 useless extension candidates. Maximal degree in co-relation 2407. Up to 746 conditions per place. [2024-11-12 20:49:22,932 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 54 selfloop transitions, 5 changer transitions 2/75 dead transitions. [2024-11-12 20:49:22,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 290 flow [2024-11-12 20:49:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:49:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:49:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-12 20:49:22,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2024-11-12 20:49:22,950 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 97 flow. Second operand 4 states and 130 transitions. [2024-11-12 20:49:22,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 290 flow [2024-11-12 20:49:22,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 281 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:49:22,962 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 136 flow [2024-11-12 20:49:22,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2024-11-12 20:49:22,968 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2024-11-12 20:49:22,968 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 136 flow [2024-11-12 20:49:22,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:22,969 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:22,969 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:22,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:49:22,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:22,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1629105685, now seen corresponding path program 1 times [2024-11-12 20:49:22,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:22,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660405503] [2024-11-12 20:49:22,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660405503] [2024-11-12 20:49:23,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660405503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:23,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:23,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395022783] [2024-11-12 20:49:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:23,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:49:23,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:49:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:49:23,434 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-12 20:49:23,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:49:23,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:23,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-12 20:49:23,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:23,710 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([776] L895-6-->L897-1: Formula: (and (not (= v_~num~0_267 0)) (= v_~total~0_278 (+ v_~total~0_279 v_thread2Thread1of1ForFork0_~j~0_7)) (= v_~num~0_267 |v_thread2Thread1of1ForFork0_#t~post13_1|)) InVars {~num~0=v_~num~0_267, thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_7, ~total~0=v_~total~0_279} OutVars{thread2Thread1of1ForFork0_#t~post13=|v_thread2Thread1of1ForFork0_#t~post13_1|, ~num~0=v_~num~0_267, thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_7, ~total~0=v_~total~0_278} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~post13, ~total~0][55], [9#L881true, 63#true, 31#L915true, 36#L897-1true, Black: 59#(and (= |thread1Thread1of1ForFork1_#t~post7| 0) (= ~num~0 0)), 52#true, 54#true, Black: 56#(= ~num~0 0)]) [2024-11-12 20:49:23,710 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2024-11-12 20:49:23,710 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2024-11-12 20:49:23,710 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2024-11-12 20:49:23,710 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2024-11-12 20:49:23,722 INFO L124 PetriNetUnfolderBase]: 769/1468 cut-off events. [2024-11-12 20:49:23,723 INFO L125 PetriNetUnfolderBase]: For 388/393 co-relation queries the response was YES. [2024-11-12 20:49:23,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3154 conditions, 1468 events. 769/1468 cut-off events. For 388/393 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7793 event pairs, 327 based on Foata normal form. 40/1410 useless extension candidates. Maximal degree in co-relation 2521. Up to 939 conditions per place. [2024-11-12 20:49:23,734 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 60 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-11-12 20:49:23,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 346 flow [2024-11-12 20:49:23,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:49:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:49:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-12 20:49:23,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2024-11-12 20:49:23,738 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 136 flow. Second operand 4 states and 135 transitions. [2024-11-12 20:49:23,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 346 flow [2024-11-12 20:49:23,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:49:23,741 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 160 flow [2024-11-12 20:49:23,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-11-12 20:49:23,743 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-12 20:49:23,743 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 160 flow [2024-11-12 20:49:23,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-12 20:49:23,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:23,744 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:23,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:49:23,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:23,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1843035079, now seen corresponding path program 1 times [2024-11-12 20:49:23,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:23,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952638529] [2024-11-12 20:49:23,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:24,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952638529] [2024-11-12 20:49:24,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952638529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:24,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:24,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:24,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694851260] [2024-11-12 20:49:24,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:24,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:49:24,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:24,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:49:24,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:49:24,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-12 20:49:24,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-12 20:49:24,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:24,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-12 20:49:24,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:24,411 INFO L124 PetriNetUnfolderBase]: 382/959 cut-off events. [2024-11-12 20:49:24,412 INFO L125 PetriNetUnfolderBase]: For 333/343 co-relation queries the response was YES. [2024-11-12 20:49:24,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 959 events. 382/959 cut-off events. For 333/343 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5194 event pairs, 143 based on Foata normal form. 46/971 useless extension candidates. Maximal degree in co-relation 1455. Up to 333 conditions per place. [2024-11-12 20:49:24,418 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 36 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2024-11-12 20:49:24,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 289 flow [2024-11-12 20:49:24,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:49:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:49:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-12 20:49:24,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-12 20:49:24,425 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 160 flow. Second operand 3 states and 102 transitions. [2024-11-12 20:49:24,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 289 flow [2024-11-12 20:49:24,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 283 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-12 20:49:24,434 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 166 flow [2024-11-12 20:49:24,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-12 20:49:24,435 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2024-11-12 20:49:24,435 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 166 flow [2024-11-12 20:49:24,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-12 20:49:24,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:24,436 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:24,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:49:24,436 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:24,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash 852952055, now seen corresponding path program 1 times [2024-11-12 20:49:24,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:24,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141493441] [2024-11-12 20:49:24,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:24,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:24,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141493441] [2024-11-12 20:49:24,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141493441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:24,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:24,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:49:24,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416487740] [2024-11-12 20:49:24,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:24,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:49:24,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:24,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:49:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:49:24,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-12 20:49:24,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:49:24,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:24,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-12 20:49:24,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:25,175 INFO L124 PetriNetUnfolderBase]: 557/1204 cut-off events. [2024-11-12 20:49:25,175 INFO L125 PetriNetUnfolderBase]: For 551/569 co-relation queries the response was YES. [2024-11-12 20:49:25,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2878 conditions, 1204 events. 557/1204 cut-off events. For 551/569 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5828 event pairs, 116 based on Foata normal form. 33/1180 useless extension candidates. Maximal degree in co-relation 2397. Up to 389 conditions per place. [2024-11-12 20:49:25,183 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 76 selfloop transitions, 8 changer transitions 5/101 dead transitions. [2024-11-12 20:49:25,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 524 flow [2024-11-12 20:49:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:49:25,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:49:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-11-12 20:49:25,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-12 20:49:25,185 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 166 flow. Second operand 7 states and 180 transitions. [2024-11-12 20:49:25,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 524 flow [2024-11-12 20:49:25,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:49:25,189 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 208 flow [2024-11-12 20:49:25,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=208, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2024-11-12 20:49:25,190 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2024-11-12 20:49:25,190 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 208 flow [2024-11-12 20:49:25,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:49:25,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:25,191 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:25,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:49:25,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:25,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:25,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1175500523, now seen corresponding path program 1 times [2024-11-12 20:49:25,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:25,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846620533] [2024-11-12 20:49:25,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:25,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:25,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:25,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846620533] [2024-11-12 20:49:25,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846620533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:25,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:25,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:49:25,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529261051] [2024-11-12 20:49:25,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:25,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:49:25,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:49:25,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:49:25,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-12 20:49:25,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:49:25,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:25,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-12 20:49:25,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:25,936 INFO L124 PetriNetUnfolderBase]: 719/1581 cut-off events. [2024-11-12 20:49:25,936 INFO L125 PetriNetUnfolderBase]: For 1255/1291 co-relation queries the response was YES. [2024-11-12 20:49:25,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1581 events. 719/1581 cut-off events. For 1255/1291 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7876 event pairs, 182 based on Foata normal form. 30/1576 useless extension candidates. Maximal degree in co-relation 3412. Up to 591 conditions per place. [2024-11-12 20:49:25,947 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 80 selfloop transitions, 12 changer transitions 4/108 dead transitions. [2024-11-12 20:49:25,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 108 transitions, 603 flow [2024-11-12 20:49:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:49:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:49:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2024-11-12 20:49:25,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-12 20:49:25,949 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 208 flow. Second operand 7 states and 182 transitions. [2024-11-12 20:49:25,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 108 transitions, 603 flow [2024-11-12 20:49:25,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:49:25,954 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 302 flow [2024-11-12 20:49:25,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=302, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-11-12 20:49:25,955 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 24 predicate places. [2024-11-12 20:49:25,955 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 302 flow [2024-11-12 20:49:25,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2024-11-12 20:49:25,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:25,955 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:25,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:49:25,956 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:25,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1806644986, now seen corresponding path program 1 times [2024-11-12 20:49:25,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:25,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700351376] [2024-11-12 20:49:25,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:26,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:26,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700351376] [2024-11-12 20:49:26,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700351376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:26,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:26,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:26,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732596095] [2024-11-12 20:49:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:26,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:49:26,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:49:26,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:49:26,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-12 20:49:26,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-12 20:49:26,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:26,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-12 20:49:26,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:26,604 INFO L124 PetriNetUnfolderBase]: 859/1917 cut-off events. [2024-11-12 20:49:26,604 INFO L125 PetriNetUnfolderBase]: For 2153/2217 co-relation queries the response was YES. [2024-11-12 20:49:26,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4819 conditions, 1917 events. 859/1917 cut-off events. For 2153/2217 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10639 event pairs, 463 based on Foata normal form. 68/1926 useless extension candidates. Maximal degree in co-relation 4351. Up to 1100 conditions per place. [2024-11-12 20:49:26,618 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 75 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2024-11-12 20:49:26,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 649 flow [2024-11-12 20:49:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:49:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:49:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2024-11-12 20:49:26,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2024-11-12 20:49:26,620 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 302 flow. Second operand 4 states and 134 transitions. [2024-11-12 20:49:26,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 649 flow [2024-11-12 20:49:26,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 629 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-12 20:49:26,626 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 314 flow [2024-11-12 20:49:26,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2024-11-12 20:49:26,627 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2024-11-12 20:49:26,627 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 314 flow [2024-11-12 20:49:26,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-12 20:49:26,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:26,628 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:26,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:49:26,629 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:26,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:26,629 INFO L85 PathProgramCache]: Analyzing trace with hash -393149811, now seen corresponding path program 1 times [2024-11-12 20:49:26,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:26,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604356277] [2024-11-12 20:49:26,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:26,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:27,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:27,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604356277] [2024-11-12 20:49:27,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604356277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:27,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:27,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 20:49:27,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632844459] [2024-11-12 20:49:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:27,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:49:27,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:49:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:49:27,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-12 20:49:27,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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) [2024-11-12 20:49:27,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:27,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-12 20:49:27,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:27,558 INFO L124 PetriNetUnfolderBase]: 884/1917 cut-off events. [2024-11-12 20:49:27,558 INFO L125 PetriNetUnfolderBase]: For 2809/2927 co-relation queries the response was YES. [2024-11-12 20:49:27,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5328 conditions, 1917 events. 884/1917 cut-off events. For 2809/2927 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10121 event pairs, 88 based on Foata normal form. 71/1986 useless extension candidates. Maximal degree in co-relation 4877. Up to 632 conditions per place. [2024-11-12 20:49:27,570 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 73 selfloop transitions, 18 changer transitions 2/105 dead transitions. [2024-11-12 20:49:27,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 105 transitions, 667 flow [2024-11-12 20:49:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:49:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:49:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2024-11-12 20:49:27,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2024-11-12 20:49:27,572 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 314 flow. Second operand 7 states and 171 transitions. [2024-11-12 20:49:27,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 105 transitions, 667 flow [2024-11-12 20:49:27,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 105 transitions, 659 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:49:27,577 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 354 flow [2024-11-12 20:49:27,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2024-11-12 20:49:27,578 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 20:49:27,578 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 354 flow [2024-11-12 20:49:27,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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) [2024-11-12 20:49:27,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:27,579 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:27,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:49:27,579 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:27,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2016812902, now seen corresponding path program 1 times [2024-11-12 20:49:27,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:27,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18010549] [2024-11-12 20:49:27,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:27,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:27,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18010549] [2024-11-12 20:49:27,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18010549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:27,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:27,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 20:49:27,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002447017] [2024-11-12 20:49:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:27,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:49:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:49:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:49:27,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-12 20:49:27,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-11-12 20:49:27,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:27,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-12 20:49:27,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:28,336 INFO L124 PetriNetUnfolderBase]: 867/1910 cut-off events. [2024-11-12 20:49:28,336 INFO L125 PetriNetUnfolderBase]: For 3652/3736 co-relation queries the response was YES. [2024-11-12 20:49:28,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5451 conditions, 1910 events. 867/1910 cut-off events. For 3652/3736 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10377 event pairs, 63 based on Foata normal form. 57/1911 useless extension candidates. Maximal degree in co-relation 5271. Up to 968 conditions per place. [2024-11-12 20:49:28,352 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 98 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2024-11-12 20:49:28,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 121 transitions, 911 flow [2024-11-12 20:49:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:49:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:49:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2024-11-12 20:49:28,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6423611111111112 [2024-11-12 20:49:28,353 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 354 flow. Second operand 6 states and 185 transitions. [2024-11-12 20:49:28,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 121 transitions, 911 flow [2024-11-12 20:49:28,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 121 transitions, 840 flow, removed 17 selfloop flow, removed 4 redundant places. [2024-11-12 20:49:28,363 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 323 flow [2024-11-12 20:49:28,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2024-11-12 20:49:28,364 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 20:49:28,365 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 323 flow [2024-11-12 20:49:28,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-11-12 20:49:28,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:28,366 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:28,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:49:28,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:28,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1060339740, now seen corresponding path program 1 times [2024-11-12 20:49:28,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:28,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820258838] [2024-11-12 20:49:28,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:28,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820258838] [2024-11-12 20:49:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820258838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:49:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698194059] [2024-11-12 20:49:28,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:28,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:28,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:28,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:49:28,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:49:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:29,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:49:29,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:49:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:29,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:49:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698194059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:29,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:49:29,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-12 20:49:29,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565061351] [2024-11-12 20:49:29,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:29,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:49:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:29,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:49:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:49:29,398 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-12 20:49:29,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-11-12 20:49:29,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:29,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-12 20:49:29,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:29,805 INFO L124 PetriNetUnfolderBase]: 886/1941 cut-off events. [2024-11-12 20:49:29,805 INFO L125 PetriNetUnfolderBase]: For 2995/3039 co-relation queries the response was YES. [2024-11-12 20:49:29,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 1941 events. 886/1941 cut-off events. For 2995/3039 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10463 event pairs, 66 based on Foata normal form. 57/1938 useless extension candidates. Maximal degree in co-relation 4963. Up to 792 conditions per place. [2024-11-12 20:49:29,822 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 96 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2024-11-12 20:49:29,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 118 transitions, 815 flow [2024-11-12 20:49:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:49:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:49:29,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2024-11-12 20:49:29,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2024-11-12 20:49:29,823 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 323 flow. Second operand 6 states and 189 transitions. [2024-11-12 20:49:29,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 118 transitions, 815 flow [2024-11-12 20:49:29,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 118 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:49:29,832 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 324 flow [2024-11-12 20:49:29,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2024-11-12 20:49:29,834 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-11-12 20:49:29,834 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 324 flow [2024-11-12 20:49:29,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-11-12 20:49:29,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:29,835 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:29,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 20:49:30,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:30,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:30,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash -559258575, now seen corresponding path program 1 times [2024-11-12 20:49:30,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:30,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889436833] [2024-11-12 20:49:30,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:30,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:30,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889436833] [2024-11-12 20:49:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889436833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:30,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:30,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:30,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79163142] [2024-11-12 20:49:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:30,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:49:30,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:49:30,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:49:30,398 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2024-11-12 20:49:30,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-12 20:49:30,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:30,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2024-11-12 20:49:30,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:30,747 INFO L124 PetriNetUnfolderBase]: 930/1981 cut-off events. [2024-11-12 20:49:30,748 INFO L125 PetriNetUnfolderBase]: For 3550/3577 co-relation queries the response was YES. [2024-11-12 20:49:30,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5742 conditions, 1981 events. 930/1981 cut-off events. For 3550/3577 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10604 event pairs, 235 based on Foata normal form. 57/2021 useless extension candidates. Maximal degree in co-relation 3433. Up to 882 conditions per place. [2024-11-12 20:49:30,773 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 76 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-11-12 20:49:30,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 730 flow [2024-11-12 20:49:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:49:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:49:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-12 20:49:30,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.640625 [2024-11-12 20:49:30,775 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 324 flow. Second operand 4 states and 123 transitions. [2024-11-12 20:49:30,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 730 flow [2024-11-12 20:49:30,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 98 transitions, 711 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:49:30,783 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 331 flow [2024-11-12 20:49:30,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2024-11-12 20:49:30,784 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 20:49:30,784 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 331 flow [2024-11-12 20:49:30,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-12 20:49:30,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:30,785 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:30,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:49:30,785 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:30,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1682629282, now seen corresponding path program 1 times [2024-11-12 20:49:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370596270] [2024-11-12 20:49:30,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:31,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:31,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:31,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370596270] [2024-11-12 20:49:31,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370596270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:31,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:31,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498967508] [2024-11-12 20:49:31,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:31,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:49:31,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:31,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:49:31,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:49:31,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2024-11-12 20:49:31,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-12 20:49:31,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:31,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2024-11-12 20:49:31,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:31,423 INFO L124 PetriNetUnfolderBase]: 913/1939 cut-off events. [2024-11-12 20:49:31,424 INFO L125 PetriNetUnfolderBase]: For 3633/3635 co-relation queries the response was YES. [2024-11-12 20:49:31,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5739 conditions, 1939 events. 913/1939 cut-off events. For 3633/3635 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 10111 event pairs, 180 based on Foata normal form. 57/1989 useless extension candidates. Maximal degree in co-relation 5197. Up to 917 conditions per place. [2024-11-12 20:49:31,435 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 67 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2024-11-12 20:49:31,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 638 flow [2024-11-12 20:49:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:49:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:49:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-11-12 20:49:31,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-12 20:49:31,437 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 331 flow. Second operand 4 states and 120 transitions. [2024-11-12 20:49:31,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 638 flow [2024-11-12 20:49:31,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 613 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-12 20:49:31,444 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 335 flow [2024-11-12 20:49:31,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2024-11-12 20:49:31,445 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 20:49:31,445 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 335 flow [2024-11-12 20:49:31,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-12 20:49:31,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:31,445 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:31,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:49:31,445 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:49:31,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:31,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2122664223, now seen corresponding path program 1 times [2024-11-12 20:49:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185208856] [2024-11-12 20:49:31,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:31,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185208856] [2024-11-12 20:49:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185208856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:49:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081311444] [2024-11-12 20:49:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:31,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:49:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:49:31,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:49:31,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-11-12 20:49:31,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 335 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-12 20:49:31,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:31,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-11-12 20:49:31,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:32,053 INFO L124 PetriNetUnfolderBase]: 833/1810 cut-off events. [2024-11-12 20:49:32,054 INFO L125 PetriNetUnfolderBase]: For 3774/3780 co-relation queries the response was YES. [2024-11-12 20:49:32,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5505 conditions, 1810 events. 833/1810 cut-off events. For 3774/3780 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9421 event pairs, 563 based on Foata normal form. 13/1805 useless extension candidates. Maximal degree in co-relation 4917. Up to 1241 conditions per place. [2024-11-12 20:49:32,062 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2024-11-12 20:49:32,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 520 flow [2024-11-12 20:49:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:49:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:49:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2024-11-12 20:49:32,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-12 20:49:32,063 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 335 flow. Second operand 5 states and 115 transitions. [2024-11-12 20:49:32,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 520 flow [2024-11-12 20:49:32,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 505 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:49:32,070 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2024-11-12 20:49:32,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2024-11-12 20:49:32,071 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-11-12 20:49:32,071 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2024-11-12 20:49:32,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-12 20:49:32,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-12 20:49:32,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-12 20:49:32,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-12 20:49:32,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-12 20:49:32,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-12 20:49:32,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-12 20:49:32,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-12 20:49:32,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 20:49:32,077 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:32,082 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:49:32,082 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:49:32,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:49:32 BasicIcfg [2024-11-12 20:49:32,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:49:32,087 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:49:32,087 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:49:32,088 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:49:32,088 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:49:21" (3/4) ... [2024-11-12 20:49:32,089 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:49:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 20:49:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 20:49:32,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 258 nodes and edges [2024-11-12 20:49:32,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-12 20:49:32,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 20:49:32,108 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 20:49:32,108 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 20:49:32,202 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:49:32,202 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:49:32,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:49:32,203 INFO L158 Benchmark]: Toolchain (without parser) took 13289.65ms. Allocated memory was 159.4MB in the beginning and 952.1MB in the end (delta: 792.7MB). Free memory was 101.8MB in the beginning and 600.3MB in the end (delta: -498.5MB). Peak memory consumption was 295.8MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,203 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:49:32,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.44ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 70.2MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.86ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 126.4MB in the end (delta: -56.2MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,204 INFO L158 Benchmark]: Boogie Preprocessor took 60.18ms. Allocated memory is still 159.4MB. Free memory was 126.4MB in the beginning and 123.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,204 INFO L158 Benchmark]: RCFGBuilder took 1545.54ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 123.0MB in the beginning and 115.8MB in the end (delta: 7.2MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,204 INFO L158 Benchmark]: TraceAbstraction took 10863.07ms. Allocated memory was 220.2MB in the beginning and 952.1MB in the end (delta: 731.9MB). Free memory was 114.7MB in the beginning and 607.7MB in the end (delta: -492.9MB). Peak memory consumption was 239.0MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,205 INFO L158 Benchmark]: Witness Printer took 115.40ms. Allocated memory is still 952.1MB. Free memory was 607.7MB in the beginning and 600.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 20:49:32,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.44ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 70.2MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.86ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 126.4MB in the end (delta: -56.2MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.18ms. Allocated memory is still 159.4MB. Free memory was 126.4MB in the beginning and 123.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1545.54ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 123.0MB in the beginning and 115.8MB in the end (delta: 7.2MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10863.07ms. Allocated memory was 220.2MB in the beginning and 952.1MB in the end (delta: 731.9MB). Free memory was 114.7MB in the beginning and 607.7MB in the end (delta: -492.9MB). Peak memory consumption was 239.0MB. Max. memory is 16.1GB. * Witness Printer took 115.40ms. Allocated memory is still 952.1MB. Free memory was 607.7MB in the beginning and 600.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.7s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 542 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1969 IncrementalHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 48 mSDtfsCounter, 1969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=7, InterpolantAutomatonStates: 61, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 752 SizeOfPredicates, 2 NumberOfNonLiveVariables, 411 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 26/34 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 20:49:32,238 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