./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:05:21,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:05:21,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:05:21,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:05:21,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:05:21,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:05:21,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:05:21,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:05:21,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:05:21,367 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:05:21,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:05:21,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:05:21,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:05:21,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:05:21,368 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:05:21,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:05:21,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:05:21,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:05:21,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:05:21,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:05:21,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:05:21,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:05:21,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:05:21,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:05:21,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:05:21,377 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:05:21,377 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:05:21,377 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:05:21,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:05:21,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:05:21,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:05:21,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:05:21,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:05:21,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:05:21,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:21,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:05:21,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:05:21,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:05:21,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:05:21,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:05:21,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:05:21,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:05:21,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:05:21,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:05:21,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-19 14:05:21,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:05:21,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:05:21,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:05:21,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:05:21,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:05:21,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-19 14:05:22,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:05:23,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:05:23,105 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-19 14:05:23,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc81d138/717834a5e6b34b3bbef7aee0f2d8c3fd/FLAG8015efeed [2024-11-19 14:05:23,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc81d138/717834a5e6b34b3bbef7aee0f2d8c3fd [2024-11-19 14:05:23,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:05:23,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:05:23,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:23,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:05:23,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:05:23,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20371561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23, skipping insertion in model container [2024-11-19 14:05:23,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:05:23,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:23,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:05:23,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:23,739 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:05:23,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23 WrapperNode [2024-11-19 14:05:23,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:23,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:23,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:05:23,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:05:23,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,776 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2024-11-19 14:05:23,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:23,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:05:23,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:05:23,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:05:23,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,804 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:05:23,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:05:23,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:05:23,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:05:23,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:05:23,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (1/1) ... [2024-11-19 14:05:23,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:23,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:23,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:05:23,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:05:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:05:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:05:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:05:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:05:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:05:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:05:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:05:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:05:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:05:23,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:05:23,888 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:05:23,958 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:05:23,959 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:05:24,119 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:05:24,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:05:24,257 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:05:24,258 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:05:24,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:24 BoogieIcfgContainer [2024-11-19 14:05:24,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:05:24,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:05:24,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:05:24,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:05:24,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:05:23" (1/3) ... [2024-11-19 14:05:24,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c2f960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:24, skipping insertion in model container [2024-11-19 14:05:24,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:23" (2/3) ... [2024-11-19 14:05:24,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c2f960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:24, skipping insertion in model container [2024-11-19 14:05:24,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:24" (3/3) ... [2024-11-19 14:05:24,267 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-19 14:05:24,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:05:24,282 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 14:05:24,282 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:05:24,341 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:05:24,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 57 transitions, 135 flow [2024-11-19 14:05:24,421 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2024-11-19 14:05:24,422 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:05:24,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 2/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 118 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-19 14:05:24,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 135 flow [2024-11-19 14:05:24,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 52 transitions, 119 flow [2024-11-19 14:05:24,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:05:24,439 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;@470a5b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:05:24,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-19 14:05:24,444 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:05:24,444 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-19 14:05:24,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:05:24,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:24,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:24,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:24,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:24,449 INFO L85 PathProgramCache]: Analyzing trace with hash 599120897, now seen corresponding path program 1 times [2024-11-19 14:05:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:24,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666433053] [2024-11-19 14:05:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:24,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:24,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666433053] [2024-11-19 14:05:24,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666433053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:24,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:24,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:24,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191381676] [2024-11-19 14:05:24,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:24,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:24,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:24,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:24,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:24,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:24,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:24,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:24,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:25,120 INFO L124 PetriNetUnfolderBase]: 2702/4322 cut-off events. [2024-11-19 14:05:25,120 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-19 14:05:25,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8325 conditions, 4322 events. 2702/4322 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 28642 event pairs, 2534 based on Foata normal form. 0/2837 useless extension candidates. Maximal degree in co-relation 7847. Up to 3777 conditions per place. [2024-11-19 14:05:25,149 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-19 14:05:25,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 183 flow [2024-11-19 14:05:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:25,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-19 14:05:25,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.52046783625731 [2024-11-19 14:05:25,161 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 119 flow. Second operand 3 states and 89 transitions. [2024-11-19 14:05:25,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 183 flow [2024-11-19 14:05:25,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 174 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:05:25,172 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2024-11-19 14:05:25,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-11-19 14:05:25,177 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-11-19 14:05:25,178 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2024-11-19 14:05:25,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:25,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:25,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:25,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:05:25,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:25,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash 599120898, now seen corresponding path program 1 times [2024-11-19 14:05:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:25,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202338970] [2024-11-19 14:05:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:25,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:25,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202338970] [2024-11-19 14:05:25,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202338970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:25,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:25,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:25,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444385276] [2024-11-19 14:05:25,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:25,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:25,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:25,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:25,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:25,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:25,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:25,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:25,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:25,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:25,570 INFO L124 PetriNetUnfolderBase]: 2625/4147 cut-off events. [2024-11-19 14:05:25,570 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-19 14:05:25,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7992 conditions, 4147 events. 2625/4147 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 27014 event pairs, 1693 based on Foata normal form. 0/2727 useless extension candidates. Maximal degree in co-relation 7971. Up to 3701 conditions per place. [2024-11-19 14:05:25,587 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 37 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2024-11-19 14:05:25,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 215 flow [2024-11-19 14:05:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-19 14:05:25,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5672514619883041 [2024-11-19 14:05:25,590 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 3 states and 97 transitions. [2024-11-19 14:05:25,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 215 flow [2024-11-19 14:05:25,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:05:25,592 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 140 flow [2024-11-19 14:05:25,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-19 14:05:25,594 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-19 14:05:25,595 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 140 flow [2024-11-19 14:05:25,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:25,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:25,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:25,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:05:25,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:25,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:25,596 INFO L85 PathProgramCache]: Analyzing trace with hash 471240821, now seen corresponding path program 1 times [2024-11-19 14:05:25,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:25,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965182528] [2024-11-19 14:05:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:25,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:25,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965182528] [2024-11-19 14:05:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965182528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:25,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:05:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537922556] [2024-11-19 14:05:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:25,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:05:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:05:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:05:25,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:25,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:25,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:25,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:25,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:25,923 INFO L124 PetriNetUnfolderBase]: 2317/3692 cut-off events. [2024-11-19 14:05:25,924 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2024-11-19 14:05:25,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7658 conditions, 3692 events. 2317/3692 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 23573 event pairs, 587 based on Foata normal form. 0/2502 useless extension candidates. Maximal degree in co-relation 6857. Up to 3137 conditions per place. [2024-11-19 14:05:25,942 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 56 selfloop transitions, 9 changer transitions 0/79 dead transitions. [2024-11-19 14:05:25,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 336 flow [2024-11-19 14:05:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:05:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:05:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-19 14:05:25,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-11-19 14:05:25,947 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 140 flow. Second operand 4 states and 136 transitions. [2024-11-19 14:05:25,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 79 transitions, 336 flow [2024-11-19 14:05:25,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 79 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:25,949 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 182 flow [2024-11-19 14:05:25,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-11-19 14:05:25,950 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2024-11-19 14:05:25,951 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 182 flow [2024-11-19 14:05:25,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:25,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:25,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:25,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:05:25,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:25,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1582357509, now seen corresponding path program 1 times [2024-11-19 14:05:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:25,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897282201] [2024-11-19 14:05:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:25,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:26,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897282201] [2024-11-19 14:05:26,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897282201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:26,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:26,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926222138] [2024-11-19 14:05:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:26,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:26,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:26,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:26,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:26,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:26,228 INFO L124 PetriNetUnfolderBase]: 1492/2437 cut-off events. [2024-11-19 14:05:26,229 INFO L125 PetriNetUnfolderBase]: For 813/813 co-relation queries the response was YES. [2024-11-19 14:05:26,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5560 conditions, 2437 events. 1492/2437 cut-off events. For 813/813 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 14802 event pairs, 1249 based on Foata normal form. 0/1852 useless extension candidates. Maximal degree in co-relation 3038. Up to 2115 conditions per place. [2024-11-19 14:05:26,253 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 35 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2024-11-19 14:05:26,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 252 flow [2024-11-19 14:05:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-19 14:05:26,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5029239766081871 [2024-11-19 14:05:26,255 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 182 flow. Second operand 3 states and 86 transitions. [2024-11-19 14:05:26,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 252 flow [2024-11-19 14:05:26,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 234 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:05:26,257 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 164 flow [2024-11-19 14:05:26,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-19 14:05:26,258 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-19 14:05:26,258 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 164 flow [2024-11-19 14:05:26,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:26,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:26,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:05:26,259 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:26,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1582357510, now seen corresponding path program 1 times [2024-11-19 14:05:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832644505] [2024-11-19 14:05:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:26,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832644505] [2024-11-19 14:05:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832644505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:26,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:26,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705932285] [2024-11-19 14:05:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:26,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:26,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:26,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:26,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:26,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:26,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:26,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:26,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:26,494 INFO L124 PetriNetUnfolderBase]: 1144/1849 cut-off events. [2024-11-19 14:05:26,494 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-19 14:05:26,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4247 conditions, 1849 events. 1144/1849 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 9764 event pairs, 341 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 4221. Up to 1460 conditions per place. [2024-11-19 14:05:26,507 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 52 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-11-19 14:05:26,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 72 transitions, 353 flow [2024-11-19 14:05:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-19 14:05:26,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6023391812865497 [2024-11-19 14:05:26,509 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 164 flow. Second operand 3 states and 103 transitions. [2024-11-19 14:05:26,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 72 transitions, 353 flow [2024-11-19 14:05:26,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:05:26,513 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2024-11-19 14:05:26,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-11-19 14:05:26,514 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-19 14:05:26,515 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2024-11-19 14:05:26,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:26,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:26,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:05:26,515 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:26,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1026093821, now seen corresponding path program 1 times [2024-11-19 14:05:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:26,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720257941] [2024-11-19 14:05:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:26,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:26,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:26,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720257941] [2024-11-19 14:05:26,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720257941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:26,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:26,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:05:26,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237930888] [2024-11-19 14:05:26,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:26,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:05:26,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:05:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:05:26,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:26,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 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) [2024-11-19 14:05:26,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:26,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:26,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:26,779 INFO L124 PetriNetUnfolderBase]: 931/1595 cut-off events. [2024-11-19 14:05:26,780 INFO L125 PetriNetUnfolderBase]: For 640/640 co-relation queries the response was YES. [2024-11-19 14:05:26,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3761 conditions, 1595 events. 931/1595 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8531 event pairs, 22 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 3221. Up to 801 conditions per place. [2024-11-19 14:05:26,787 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 62 selfloop transitions, 12 changer transitions 0/88 dead transitions. [2024-11-19 14:05:26,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 88 transitions, 434 flow [2024-11-19 14:05:26,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:05:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:05:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-19 14:05:26,789 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5473684210526316 [2024-11-19 14:05:26,789 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 5 states and 156 transitions. [2024-11-19 14:05:26,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 88 transitions, 434 flow [2024-11-19 14:05:26,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 88 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:26,792 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 194 flow [2024-11-19 14:05:26,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-19 14:05:26,793 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-19 14:05:26,794 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 194 flow [2024-11-19 14:05:26,794 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) [2024-11-19 14:05:26,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:26,794 INFO L204 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, 1] [2024-11-19 14:05:26,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:05:26,795 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:26,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 959320074, now seen corresponding path program 1 times [2024-11-19 14:05:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416932764] [2024-11-19 14:05:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:26,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:26,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416932764] [2024-11-19 14:05:26,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416932764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:26,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:26,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:05:26,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317156626] [2024-11-19 14:05:26,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:26,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:05:26,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:26,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:05:26,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:05:26,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:26,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:26,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:26,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:26,972 INFO L124 PetriNetUnfolderBase]: 687/1154 cut-off events. [2024-11-19 14:05:26,973 INFO L125 PetriNetUnfolderBase]: For 1035/1035 co-relation queries the response was YES. [2024-11-19 14:05:26,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 1154 events. 687/1154 cut-off events. For 1035/1035 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5507 event pairs, 105 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 1163. Up to 438 conditions per place. [2024-11-19 14:05:26,978 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 56 selfloop transitions, 9 changer transitions 3/82 dead transitions. [2024-11-19 14:05:26,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 82 transitions, 450 flow [2024-11-19 14:05:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:05:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:05:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-19 14:05:26,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2024-11-19 14:05:26,979 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 194 flow. Second operand 4 states and 130 transitions. [2024-11-19 14:05:26,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 82 transitions, 450 flow [2024-11-19 14:05:26,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 372 flow, removed 18 selfloop flow, removed 5 redundant places. [2024-11-19 14:05:26,982 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 182 flow [2024-11-19 14:05:26,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-19 14:05:26,983 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-19 14:05:26,983 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 182 flow [2024-11-19 14:05:26,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:26,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:26,984 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:26,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:05:26,984 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-19 14:05:26,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1206686833, now seen corresponding path program 1 times [2024-11-19 14:05:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:26,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495180786] [2024-11-19 14:05:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:26,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:27,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:27,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495180786] [2024-11-19 14:05:27,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495180786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:27,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:27,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:05:27,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464134785] [2024-11-19 14:05:27,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:27,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:05:27,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:05:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:05:27,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-19 14:05:27,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:27,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:27,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-19 14:05:27,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:27,181 INFO L124 PetriNetUnfolderBase]: 594/1010 cut-off events. [2024-11-19 14:05:27,181 INFO L125 PetriNetUnfolderBase]: For 783/783 co-relation queries the response was YES. [2024-11-19 14:05:27,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1010 events. 594/1010 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4836 event pairs, 78 based on Foata normal form. 29/994 useless extension candidates. Maximal degree in co-relation 858. Up to 399 conditions per place. [2024-11-19 14:05:27,184 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2024-11-19 14:05:27,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 360 flow [2024-11-19 14:05:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:05:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:05:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-19 14:05:27,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49473684210526314 [2024-11-19 14:05:27,185 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 182 flow. Second operand 5 states and 141 transitions. [2024-11-19 14:05:27,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 360 flow [2024-11-19 14:05:27,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 330 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-19 14:05:27,186 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-19 14:05:27,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-19 14:05:27,187 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -8 predicate places. [2024-11-19 14:05:27,187 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-19 14:05:27,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:27,190 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2024-11-19 14:05:27,190 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2024-11-19 14:05:27,190 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2024-11-19 14:05:27,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2024-11-19 14:05:27,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2024-11-19 14:05:27,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2024-11-19 14:05:27,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2024-11-19 14:05:27,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2024-11-19 14:05:27,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2024-11-19 14:05:27,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2024-11-19 14:05:27,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2024-11-19 14:05:27,197 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2024-11-19 14:05:27,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:05:27,197 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:27,209 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:05:27,209 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:05:27,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:05:27 BasicIcfg [2024-11-19 14:05:27,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:05:27,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:05:27,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:05:27,218 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:05:27,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:24" (3/4) ... [2024-11-19 14:05:27,220 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:05:27,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:05:27,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:05:27,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:05:27,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-19 14:05:27,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-19 14:05:27,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 14:05:27,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:05:27,317 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:05:27,317 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:05:27,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:05:27,318 INFO L158 Benchmark]: Toolchain (without parser) took 3806.64ms. Allocated memory was 161.5MB in the beginning and 396.4MB in the end (delta: 234.9MB). Free memory was 108.1MB in the beginning and 124.9MB in the end (delta: -16.8MB). Peak memory consumption was 218.8MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,318 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 161.5MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:05:27,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.59ms. Allocated memory is still 161.5MB. Free memory was 107.7MB in the beginning and 95.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.53ms. Allocated memory is still 161.5MB. Free memory was 94.6MB in the beginning and 92.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,318 INFO L158 Benchmark]: Boogie Preprocessor took 39.66ms. Allocated memory is still 161.5MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,319 INFO L158 Benchmark]: RCFGBuilder took 440.33ms. Allocated memory is still 161.5MB. Free memory was 90.6MB in the beginning and 54.3MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,319 INFO L158 Benchmark]: TraceAbstraction took 2955.98ms. Allocated memory was 161.5MB in the beginning and 396.4MB in the end (delta: 234.9MB). Free memory was 53.6MB in the beginning and 130.1MB in the end (delta: -76.6MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,319 INFO L158 Benchmark]: Witness Printer took 99.52ms. Allocated memory is still 396.4MB. Free memory was 130.1MB in the beginning and 124.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:05:27,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 161.5MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.59ms. Allocated memory is still 161.5MB. Free memory was 107.7MB in the beginning and 95.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.53ms. Allocated memory is still 161.5MB. Free memory was 94.6MB in the beginning and 92.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.66ms. Allocated memory is still 161.5MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.33ms. Allocated memory is still 161.5MB. Free memory was 90.6MB in the beginning and 54.3MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2955.98ms. Allocated memory was 161.5MB in the beginning and 396.4MB in the end (delta: 234.9MB). Free memory was 53.6MB in the beginning and 130.1MB in the end (delta: -76.6MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. * Witness Printer took 99.52ms. Allocated memory is still 396.4MB. Free memory was 130.1MB in the beginning and 124.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 95 locations, 27 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: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 3 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=5, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:05:27,344 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